Patents by Inventor Zefei LI

Zefei LI 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: 11703865
    Abstract: A method for supporting aerial operation over a surface includes obtaining a three-dimensional (3D) representation of the surface; converting the 3D representation of the surface to a two-dimensional (2D) representation of the surface; obtaining a 2D flight path of the aircraft based on the 2D representation of the surface; converting the 2D flight path to a 3D flight path including location coordinates; and controlling the aircraft to conduct a flight mission following the 3D flight path.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: July 18, 2023
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Xumin Wu, Guang Yan, Zhuang Feng, Meng Hu, Zefei Li, Mingxi Wang, Renli Shi
  • Publication number: 20230177866
    Abstract: An optical sensor array substrate and an optical fingerprint reader are provided. The optical sensor array substrate includes a substrate including a detection area which includes a plurality of photosensitive pixels. Photosensitive pixel includes: a TFT arranged on the substrate; a storage capacitor arranged on the substrate and having a first capacitor plate, and a second capacitor plate electrically connected to the source or drain of the TFT; a photosensitive element located on one side of the storage capacitor away from the substrate, and having one end electrically connected to the second capacitor plate; a first electrode layer located on one side of the photosensitive element away from the substrate and electrically connected to another end of the photosensitive element. An orthographic projection of the second capacitor plate on the substrate at least partially overlaps with an orthographic projection of the first electrode layer on the substrate.
    Type: Application
    Filed: November 30, 2020
    Publication date: June 8, 2023
    Inventors: Yajie Feng, Cheng Li, Yue Geng, Kuiyuan Wang, Zefei Li, Chaoyang Qi, Yi Dai, Xiaoguan Li, Yingzi Wang
  • Publication number: 20230178578
    Abstract: The re is provided a fingerprint identification module, including a substrate having a fingerprint identification area and a peripheral area; a photoelectric sensing structure in the fingerprint identification area, and including pixel units; each pixel unit includes a thin film transistor having a gate electrode coupled to a corresponding gate line and a first electrode coupIed to a corresponding signal sensing line; the fingerprint identification area includes a photosensitive region, the pixel unit in the photosensitive region further includes a photoelectric sensor including a third electrode, a photosensitive pattern and a fourth electrode which are sequentially stacked along a direction away from the substrate, and the third electrode is coupled to a second electrode of the thin film transistor in the same pixel unit as that where the photoelectric sensor is located; an area ratio of the photoelectric sensor to the pixel unit corresponding thereto ranges from 40% to 90%.
    Type: Application
    Filed: November 30, 2020
    Publication date: June 8, 2023
    Inventors: Kuiyuan WANG, Cheng LI, Yue GENG, Chaoyang QI, Yi DAI, Zefei LI, Xiaoguan LI, Yajie FENG, Yingzi WANG
  • Patent number: 11587966
    Abstract: A fingerprint acquisition apparatus includes a plurality of photoelectric conversion units and a first shading pattern. The first shading pattern includes at least one first shading block including a first opening, and an orthographic projection of the first opening in the first shading block on the base substrate is within an orthographic projection of a target photoelectric conversion unit corresponding to the first shading block on the base substrate.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: February 21, 2023
    Assignees: Beijing BOE Sensor Technology Co., LTD, BOE Technology Group Co., LTD.
    Inventors: Yajie Feng, Cheng Li, Yue Geng, Kuiyuan Wang, Chaoyang Qi, Yi Dai, Zefei Li
  • Patent number: 11538848
    Abstract: Provided a fingerprint identification substrate and a manufacturing method therefor, a identification method, and a display apparatus. The fingerprint identification substrate includes a substrate and at least two kinds of identification pixels disposed on the substrate, a first identification pixel includes a first photodiode and a second identification pixel includes a second photodiode. The first photodiode includes a first electrode, a first photoelectric conversion layer and a second electrode, the second photodiode includes the first electrode, a second photoelectric conversion layer and the second electrode, and the first photoelectric conversion layer and the second photoelectric conversion layer have different spectral response characteristics to red light or infrared light.
    Type: Grant
    Filed: June 26, 2021
    Date of Patent: December 27, 2022
    Assignees: Beijing BOE Sensor Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yue Geng, Cheng Li, Zhonghuan Li, Kuiyuan Wang, Yi Dai, Zefei Li, Chaoyang Qi, Yajie Feng, Xiaoguan Li
  • Publication number: 20220164561
    Abstract: The embodiment of the present disclosure discloses a display apparatus. A flexible optical fingerprint recognition component is obtained by arrangement of a flexible substrate, a flexible fingerprint recognition element and a flexible collimation structure to implement flexible foldable display. In addition, the flexible fingerprint recognition element includes a first flexible fingerprint recognition element and a second flexible fingerprint recognition element which are mutually independent, the first flexible fingerprint recognition element corresponds to a first non-bending area of the flexible display module, the second flexible fingerprint recognition element corresponds to a second non-bending area of the flexible display module, and a non-fingerprint recognition area corresponding to the bending area is provided between the first flexible fingerprint recognition element and the second flexible fingerprint recognition element.
    Type: Application
    Filed: June 22, 2021
    Publication date: May 26, 2022
    Inventors: Yi DAI, Cheng LI, Yue GENG, Kuiyuan WANG, Yajie FENG, Zefei LI, Chaoyang QI, Zhonghuan LI
  • Publication number: 20220165780
    Abstract: Provided a fingerprint identification substrate and a manufacturing method therefor, a identification method, and a display apparatus. The fingerprint identification substrate includes a substrate and at least two kinds of identification pixels disposed on the substrate, a first identification pixel includes a first photodiode and a second identification pixel includes a second photodiode. The first photodiode includes a first electrode, a first photoelectric conversion layer and a second electrode, the second photodiode includes the first electrode, a second photoelectric conversion layer and the second electrode, and the first photoelectric conversion layer and the second photoelectric conversion layer have different spectral response characteristics to red light or infrared light.
    Type: Application
    Filed: June 26, 2021
    Publication date: May 26, 2022
    Inventors: Yue GENG, Cheng LI, Zhonghuan LI, Kuiyuan WANG, Yi DAI, Zefei LI, Chaoyang QI, Yajie FENG, Xiaoguan LI
  • Publication number: 20220165772
    Abstract: A fingerprint acquisition apparatus includes a plurality of photoelectric conversion units and a first shading pattern. The first shading pattern includes at least one first shading block including a first opening, and an orthographic projection of the first opening in the first shading block on the base substrate is within an orthographic projection of a target photoelectric conversion unit corresponding to the first shading block on the base substrate.
    Type: Application
    Filed: August 16, 2021
    Publication date: May 26, 2022
    Inventors: Yajie Feng, Cheng Li, Yue Geng, Kuiyuan Wang, Chaoyang Qi, Yi Dai, Zefei Li
  • Publication number: 20220163812
    Abstract: The present disclosure provides an optical identification module and a display panel. The optical identification module includes a substrate, an identification structure and a collimation optical path structure, where the identification structure is arranged on the substrate, the collimation optical path structure is arranged on a light entering side of the identification structure, the optical identification module further includes a non-visible light filtering structure, and the non-visible light filtering structure is arranged in the collimation optical path structure and configured to filter non-visible light irradiated to the identification structure.
    Type: Application
    Filed: June 23, 2021
    Publication date: May 26, 2022
    Inventors: Zefei LI, Yue GENG, Cheng LI, Zhonghuan LI, Chaoyang QI, Kuiyuan WANG, Yi DAI, Yajie FENG, Xiaoguan LI
  • Patent number: 11334077
    Abstract: A method for locating a faulty photovoltaic (PV) panel includes controlling an unmanned aerial vehicle (UAV) to fly and perform image capturing, obtaining image information of the PV panel captured by a camera carried by the UAV, obtaining global positioning (GPS) information of the UAV and attitude information of the camera at a shooting time when the camera captures the image information, and, in response to determining that the image information includes fault information of the PV panel, determining a position of the PV panel according to the GPS information of the UAV and the attitude information of the camera at the shooting time.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: May 17, 2022
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Chao Weng, Zefei Li, Chang Liu, Mingxi Wang
  • Publication number: 20210333794
    Abstract: A method for supporting aerial operation over a surface includes obtaining a representation of the surface that comprises a plurality of flight sections, and identifying a flight path based on the representation of the surface. The flight path allows an aircraft, when following the flight path, to conduct an operation over the flight sections.
    Type: Application
    Filed: May 24, 2021
    Publication date: October 28, 2021
    Inventors: Xumin WU, Guang YAN, Zhuang FENG, Meng HU, Zefei LI, Mingxi WANG, Renli SHI
  • Patent number: 11113529
    Abstract: A method for identifying a photovoltaic panel includes: acquiring a grayscale image of an infrared image captured by a camera mounted on a UAV, the grayscale image including an image of a photovoltaic panel; performing edge extraction processing on an image in the grayscale image to obtain a monochrome image including a plurality of horizontal lines and a plurality of vertical lines, the horizontal lines being lines in a first direction, an average length of the lines in the first direction being greater than a preset length, the vertical lines being lines in a second direction, and an average length of the lines in the second direction being less than the preset length; and identifying the photovoltaic panel in the monochrome image based on a relative positional relationship between the horizontal lines and the vertical lines in the monochrome image.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: September 7, 2021
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Zefei Li, Chao Weng
  • Patent number: 11016488
    Abstract: A method for supporting aerial operation over a surface includes obtaining a representation of the surface that comprises a plurality of flight sections, and identifying a flight path based on the representation of the surface. The flight path allows an aircraft, when following the flight path, to conduct an operation over the flight sections.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: May 25, 2021
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Xumin Wu, Guang Yan, Zhuang Feng, Meng Hu, Zefei Li, Mingxi Wang, Renli Shi
  • Publication number: 20200201333
    Abstract: A method for locating a faulty photovoltaic (PV) panel includes controlling an unmanned aerial vehicle (UAV) to fly and perform image capturing, obtaining image information of the PV panel captured by a camera carried by the UAV, obtaining global positioning (GPS) information of the UAV and attitude information of the camera at a shooting time when the camera captures the image information, and, in response to determining that the image information includes fault information of the PV panel, determining a position of the PV panel according to the GPS information of the UAV and the attitude information of the camera at the shooting time.
    Type: Application
    Filed: December 27, 2019
    Publication date: June 25, 2020
    Inventors: Chao WENG, Zefei LI, Chang LIU, Mingxi WANG
  • Publication number: 20200134318
    Abstract: A method for identifying a photovoltaic panel includes: acquiring a grayscale image of an infrared image captured by a camera mounted on a UAV, the grayscale image including an image of a photovoltaic panel; performing edge extraction processing on an image in the grayscale image to obtain a monochrome image including a plurality of horizontal lines and a plurality of vertical lines, the horizontal lines being lines in a first direction, an average length of the lines in the first direction being greater than a preset length, the vertical lines being lines in a second direction, and an average length of the lines in the second direction being less than the preset length; and identifying the photovoltaic panel in the monochrome image based on a relative positional relationship between the horizontal lines and the vertical lines in the monochrome image.
    Type: Application
    Filed: December 23, 2019
    Publication date: April 30, 2020
    Inventors: Zefei LI, Chao WENG
  • Patent number: 10594941
    Abstract: An image processing method includes obtaining an acquired image captured by an image acquisition device and obtaining vibration information associated with the acquired image and generated while the image acquisition device capturing the acquired image. The vibration information includes an angle of vibration. The method further includes performing a distortion correction to the acquired image to obtain a distortion-corrected image based upon the vibration information and a preset distortion correction parameter, and determining a target image from the distortion-corrected image based upon the vibration information.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: March 17, 2020
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Lifu Yu, Zefei Li, Zisheng Cao, Mingyu Wang
  • Publication number: 20190277645
    Abstract: A navigation route editing method includes, when a new corner point is added, determining one of initial corner points of an initial area as a connecting corner point based on locations of the initial corner points and a location of the new corner point. The new corner point and the connecting corner point form end points of a to-be-analyzed line section, and the initial area includes boundary line sections each having two adjacent ones of the initial corner points as end points. The method further includes determining whether one of the boundary line sections has an intersecting relationship with the to-be-analyzed line section, and, if not, determining a target area including the new corner point and the initial corner points. The method also includes planning a navigation route in the target area.
    Type: Application
    Filed: May 24, 2019
    Publication date: September 12, 2019
    Inventors: Zefei LI, Chuantang XIONG, Zhiqiang WU
  • Publication number: 20190138013
    Abstract: A method for supporting aerial operation over a surface includes obtaining a representation of the surface that comprises a plurality of flight sections, and identifying a flight path based on the representation of the surface. The flight path allows an aircraft, when following the flight path, to conduct an operation over the flight sections.
    Type: Application
    Filed: January 3, 2019
    Publication date: May 9, 2019
    Inventors: Xumin WU, Guang YAN, Zhuang FENG, Meng HU, Zefei LI, Mingxi WANG, Renli SHI
  • Publication number: 20180160045
    Abstract: An image processing method includes obtaining an acquired image captured by an image acquisition device and obtaining vibration information associated with the acquired image and generated while the image acquisition device capturing the acquired image. The vibration information includes an angle of vibration. The method further includes performing a distortion correction to the acquired image to obtain a distortion-corrected image based upon the vibration information and a preset distortion correction parameter, and determining a target image from the distortion-corrected image based upon the vibration information.
    Type: Application
    Filed: January 31, 2018
    Publication date: June 7, 2018
    Inventors: Lifu YU, Zefei LI, Zisheng CAO, Mingyu WANG