Patents by Inventor Congzhong Guo

Congzhong Guo 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: 11637965
    Abstract: A method includes capturing, by a camera disposed behind a display panel of an electronic device, a plurality of point spread functions (PSFs) through a semi-transparent pixel region of the display panel. Each of the plurality of PSFs is captured at a different exposure time. The method further includes generating an intensity dataset corresponding to the plurality of PSFs, the intensity dataset comprises a plurality of pixel location and a plurality of exposure times associated with the respective pixel locations, calculating a plurality of noise statistics values for the plurality of pixel locations of the intensity dataset, respectively, generating a pixel mask, the pixel mask filters the plurality of pixel locations for pixel locations with respective noise statistics values within a particular threshold, generating one or more high dynamic range (HDR) PSFs utilizing the plurality of PSFs and the pixel mask.
    Type: Grant
    Filed: April 19, 2022
    Date of Patent: April 25, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ye Zhao, Changgeng Liu, Ernest Rehmatulla Post, Brian R. Patton, Congzhong Guo
  • Publication number: 20220256073
    Abstract: A method includes capturing, by a camera disposed behind a display panel of an electronic device, a plurality of point spread functions (PSFs) through a semi-transparent pixel region of the display panel. Each of the plurality of PSFs is captured at a different exposure time. The method further includes generating an intensity dataset corresponding to the plurality of PSFs, the intensity dataset comprises a plurality of pixel location and a plurality of exposure times associated with the respective pixel locations, calculating a plurality of noise statistics values for the plurality of pixel locations of the intensity dataset, respectively, generating a pixel mask, the pixel mask filters the plurality of pixel locations for pixel locations with respective noise statistics values within a particular threshold, generating one or more high dynamic range (HDR) PSFs utilizing the plurality of PSFs and the pixel mask.
    Type: Application
    Filed: April 19, 2022
    Publication date: August 11, 2022
    Inventors: Ye Zhao, Changgeng Liu, Ernest Rehmatulla Post, Brian R. Patton, Congzhong Guo
  • Patent number: 11343440
    Abstract: A method includes capturing, by a camera disposed behind a display panel of an electronic device, a plurality of point spread functions (PSFs) through a semi-transparent pixel region of the display panel. Each of the plurality of PSFs is captured at a different exposure time. The method further includes determining, for each of the PSFs, pixel intensity data for each of a plurality of pixel locations of the PSF. The pixel intensity data is associated with the exposure time of the respective PSF. The method further includes calculating, for each pixel location, a weighted average pixel intensity value based on the pixel intensity data and the exposure time for the respective pixel location over the plurality of PSFs, and generating a high dynamic range (HDR) PSF utilizing the weighted average pixel intensity values.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: May 24, 2022
    Assignee: SAMSUNG ELECTRONICS COMPANY, LTD.
    Inventors: Ye Zhao, Changgeng Liu, Ernest Rehmatulla Post, Brian R. Patton, Congzhong Guo
  • Patent number: 10608614
    Abstract: A bi-state bifurcation-based control system and method for nonlinear resonators, which utilizes a control loop to servo on the edge of the bifurcation jump, either at the maximum “on” point prior to the Duffing bifurcation jump or along the rising edge of the parametric bifurcation.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: March 31, 2020
    Assignee: CARNEGIE MELLON UNIVERSITY
    Inventors: Gary K. Fedder, Congzhong Guo
  • Publication number: 20160072472
    Abstract: A bi-state bifurcation-based control system and method for nonlinear resonators, which utilizes a control loop to servo on the edge of the bifurcation jump, either at the maximum “on” point prior to the Duffing bifurcation jump or along the rising edge of the parametric bifurcation.
    Type: Application
    Filed: February 20, 2015
    Publication date: March 10, 2016
    Applicant: CARNEGIE MELLON UNIVERSITY, a Pennsylvania Non-Profit Corporation
    Inventors: Gary K. Fedder, Congzhong Guo