Patents by Inventor Elina R. Glaretas

Elina R. Glaretas 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).

  • Digital in-pixel read-out integrated circuit including residue-to-counter calibration
    Patent number: 10911705
    Abstract: A digital pixel circuit includes a unit cell configured to accumulate an electrical charge during a frame. The electrical charge is proportional to a light intensity of a light signal that is detected at a location in a field of view of the unit cell. An image processing unit is in signal communication with the unit cell. The image processing unit is configured to determine a total charge based on a plurality of accumulated charges over a plurality of sequential frames, and to determine an indication of the light intensity of light at the location based on the total charge. The unit cell is configured to operate in a first mode to accumulate the electrical charges over the plurality of sequential frames, and a second mode to perform a calibration operation that calibrates the unit cell based on the electrical charge accumulated during a single frame among the plurality of frames.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: February 2, 2021
    Assignee: RAYTHEON COMPANY
    Inventors: Michael J. Batinica, Elina R. Glaretas, Micky Harris
  • DIGITAL IN-PIXEL READ-OUT INTEGRATED CIRCUIT INCLUDING RESIDUE-TO-COUNTER CALIBRATION
    Publication number: 20200382733
    Abstract: A digital pixel circuit includes a unit cell configured to accumulate an electrical charge during a frame. The electrical charge is proportional to a light intensity of a light signal that is detected at a location in a field of view of the unit cell. An image processing unit is in signal communication with the unit cell. The image processing unit is configured to determine a total charge based on a plurality of accumulated charges over a plurality of sequential frames, and to determine an indication of the light intensity of light at the location based on the total charge. The unit cell is configured to operate in a first mode to accumulate the electrical charges over the plurality of sequential frames, and a second mode to perform a calibration operation that calibrates the unit cell based on the electrical charge accumulated during a single frame among the plurality of frames.
    Type: Application
    Filed: May 31, 2019
    Publication date: December 3, 2020
    Inventors: Michael J. Batinica, Elina R. Glaretas, Micky Harris