Patents by Inventor Zhaowei Xin

Zhaowei Xin 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: 11546508
    Abstract: A polarization imaging system for generating a super resolution image is disclosed in the present invention. The polarization imaging system consists of multiple functional elements for the generation of the super resolution image including a camera device, a polarization analysis module, a weight module, a fusion module and an output module. The lens of the imaging system captures light coming from a subject which is detected and acted upon by a polarization sensor. The polarization sensor generates multiple low resolution images and calculates degree of linear polarization and angle of polarization of the light rays based on which a guided mask is generated. The system employs an algorithm to combine the one or more low resolution images to produce a final super resolution image as the output.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: January 3, 2023
    Assignee: Black Sesame Technologies Inc.
    Inventors: Zhaowei Xin, Chao Wang
  • Patent number: 11490027
    Abstract: A high dynamic range sensor, comprising a pixel array, having a plurality of pixels, a spatial light transmittance modulator, the spatial light transmittance modulator having a plurality of pre-defined shadings, the plurality of pre-defined shadings are fixed with respect to the plurality of pixels, wherein the plurality of pre-defined shadings is located above the plurality of pixels and a micro-lens array, having a plurality of micro-lens aligned to at least one of the plurality of pixels, wherein the micro-lens array is located above the plurality of pixels.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: November 1, 2022
    Assignee: Black Sesame Technologies Inc.
    Inventors: Zhaowei Xin, Hui Pan
  • Patent number: 11425304
    Abstract: A method to reduce a motion blur and a rolling shutter effect, comprising, receiving a main image frame, a main timing and a main exposure from a main camera, receiving a secondary image frame, a secondary timing and a secondary exposure from a secondary camera, correcting the secondary image frame to the main image frame, determining a delta timing based on the main timing and the secondary timing, determining a delta exposure based on the main exposure and the secondary exposure, determining a discrete motion of offset sequences based on the secondary image frame, determining a row-wise motion blur kernel based on the main image frame and the discrete motion of offset sequences and determining a spatially varying kernel deconvolution based on the main image frame and the row-wise motion blur kernel.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: August 23, 2022
    Assignee: Black Sesame Technologies Inc.
    Inventors: Chao Wang, Zhaowei Xin, Donghui Wu
  • Publication number: 20220132017
    Abstract: A high dynamic range sensor, comprising a pixel array, having a plurality of pixels, a spatial light transmittance modulator, the spatial light transmittance modulator having a plurality of pre-defined shadings, the plurality of pre-defined shadings are fixed with respect to the plurality of pixels, wherein the plurality of pre-defined shadings is located above the plurality of pixels and a micro-lens array, having a plurality of micro-lens aligned to at least one of the plurality of pixels, wherein the micro-lens array is located above the plurality of pixels.
    Type: Application
    Filed: October 23, 2020
    Publication date: April 28, 2022
    Inventors: Zhaowei Xin, Hui Pan
  • Patent number: 10381397
    Abstract: A nano-metallic-planar-apex optical detector, comprising a semiconductor optical detector and a nano array mask defining a plurality of polygonal apertures connected to the optical detector, wherein the semiconductor optical detector detects near-field light focused b the nano array.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: August 13, 2019
    Assignee: Black Sesame International Holding Limited
    Inventors: Zhaowei Xin, Dong Wei
  • Patent number: 10295850
    Abstract: A polarization-independent liquid crystal micro-lens array, comprising, an optically transparent, dielectric planar panel, an optically transparent upper planar electrode deposited upon the planar panel top surface and bottom surface, a top substrate positioned adjacent to the planar panel top surface, a top pattern electrode deposited on the top substrate internal surface, a top liquid crystal layer disposed between the planar panel top surface and the top substrate internal surface, the top liquid crystal layer having a first polarization, a bottom substrate positioned adjacent to the planar panel bottom surface, a bottom pattern electrode deposited on the bottom substrate internal surface, a bottom liquid crystal layer disposed between the planar panel bottom surface and the bottom substrate internal surface, the bottom liquid crystal layer having a second polarization orthogonal to the first polarization.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: May 21, 2019
    Assignee: Black Sesame International Holdings Limited
    Inventors: Zhaowei Xin, Dong Wei
  • Publication number: 20190148452
    Abstract: A nano-metallic-planar-apex optical detector, comprising a semiconductor optical detector and a nano array mask defining a plurality of polygonal apertures connected to the optical detector, wherein the semiconductor optical detector detects near-field light focused b the nano array.
    Type: Application
    Filed: March 20, 2018
    Publication date: May 16, 2019
    Inventors: Zhaowei Xin, Dong Wei
  • Publication number: 20190146305
    Abstract: A polarization-independent liquid crystal micro-lens array, comprising, an optically transparent, dielectric planar panel, an optically transparent upper planar electrode deposited upon the planar panel top surface and bottom surface, a top substrate positioned adjacent to the planar panel top surface, a top pattern electrode deposited on the top substrate internal surface, a top liquid crystal layer disposed between the planar panel top surface and the top substrate internal surface, the top liquid crystal layer having a first polarization, a bottom substrate positioned adjacent to the planar panel bottom surface, a bottom pattern electrode deposited on the bottom substrate internal surface, a bottom liquid crystal layer disposed between the planar panel bottom surface and the bottom substrate internal surface, the bottom liquid crystal layer having a second polarization orthogonal to the first polarization.
    Type: Application
    Filed: June 15, 2018
    Publication date: May 16, 2019
    Inventors: Zhaowei Xin, Dong Wei