Patents by Inventor Dejin ZHANG

Dejin ZHANG 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: 11164946
    Abstract: A manufacturing method for a flash device. A manufacturing method for a flash device, comprising: providing a substrate; forming sequentially, on the substrate, a floating gate (FG) oxide layer, an FG polycrystalline layer, and an FG mask layer; etching, at the FG location region, the FG polycrystalline layer and the FG mask layer, forming a window on the FG mask layer, and forming a trench on the FG polycrystalline layer, the window being communicated with the trench; performing second etching of the side wall of the window of the FG mask layer, enabling the width of the trench located on the FG polycrystalline layer to be less than the width of the secondarily-etched window located on the FG mask layer; and oxidizing the FG polycrystalline layer, enabling the oxide to fill the trench to form a field oxide layer; and etching an FG having sharp angles.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: November 2, 2021
    Assignee: CSMC TECHNOLOGIES FAB2 CO., LTD.
    Inventors: Tao Liu, Zhibin Liang, Song Zhang, Yan Jin, Dejin Wang
  • Publication number: 20210104930
    Abstract: A motor for a rotary compressor, and a compressor and an air conditioner having the motor, are disclosed. The motor includes a stator core and a rotor core. The stator core has a through-hole in a center thereof. The stator core is provided with a plurality of circumferentially spaced stator teeth, and the number of stator teeth is M. The rotor core is rotatably disposed in the through-hole. The rotor core is provided with a plurality of circumferentially spaced rotor slots, and the number of the rotor slots is N, wherein 2?N?M?6. A cross-sectional area of the stator core is denoted as S, and a distance between two endpoints of two radially opposite curved segments of an outer edge of the cross section is denoted as L, wherein 0.93?4*S/3.14/L2?0.96.
    Type: Application
    Filed: December 18, 2020
    Publication date: April 8, 2021
    Applicant: GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    Inventors: Xiaohua QIU, Dong XIANG, Zunmu ZHANG, Dejin ZHANG
  • Patent number: 10755132
    Abstract: A method for extracting a surface deformation feature of an object based on linear scanning three-dimensional point cloud is disclosed comprising: performing data acquisition by using a three-dimensional measurement sensor based on line structured light, and obtaining a three-dimensional point cloud data of a surface of the object after data pre-processing; eliminating influences of abnormal data and textures on extraction of sectional main profiles, to accurately obtain the sectional main profiles of the object; obtaining a binary image based on deformation feature points extracted from sections, in conjunction with a deformation feature knowledge base, and preliminarily positioning a deformation region based on sub-block images to obtain a set of target morphology sub-blocks; then performing a morphological operation on deformation feature points in the set of target morphology sub-blocks, and generating a deformation region of confidence ROC, and then performing a region growth to extract a target using ge
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: August 25, 2020
    Assignee: WUHAN WUDA ZOYON SCIENCE AND TECHNOLOGY CO., LTD
    Inventors: Qingquan Li, Min Cao, Dejin Zhang, Hong Lin, Ying Chen
  • Patent number: 10614386
    Abstract: A printed circuit board (PCB) panelization method and a PCB panelization system are disclosed herein. The PCB panelization method comprises the following steps: S1, reading daughterboard information of purchase orders, wherein the daughterboard information comprises respective areas, delivery quantities and attributes of daughterboards; S2, performing comparison of the daughterboard information, screening for daughterboards having attributes that are the same, and establishing a panelization rule database; S3, selecting panels (PNLs) satisfying requirements according to panelization requirements; S4, selecting, from the daughterboards having the same attributes as the selected panels, daughterboards to be panelized together for the selected panels, and arranging a graphical layout for a panelization of the selected panels.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: April 7, 2020
    Assignees: Guangzhou Fastprint Circuit Tech Co., Ltd., Shenzhen Fastprint Circuit Tech Co., Ltd.
    Inventors: Xianwen Lu, Dejin Zhang, Lijun Yi, Xi Chen
  • Patent number: 10571256
    Abstract: A three-dimensional measurement sensor based on line structured light, comprising a sensing head and a controller. The sensing head is used for collecting section data and attitude information of its own, and matching the section data with the self attitude information. The sensing head comprises a three-dimensional camera, an attitude sensor, a laser and a control sub-board, wherein the three-dimensional camera is installed at a certain angle relative to the laser, and acquires elevation and grey information about an object surface corresponding to laser rays using a triangulation principle. The attitude sensor, the three-dimensional camera and the laser are installed on the same rigid plane, and the attitude sensor reflects measurement attitude of the three-dimensional camera and the laser in real time. The controller is used for measuring and controlling the sensing head, performing data processing transmission and supporting external control.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: February 25, 2020
    Assignee: WUHAN WUDA ZOYON SCIENCE AND TECHNOLOGY CO., LTD
    Inventors: Qingquan Li, Dejin Zhang, Min Cao, Xinlin Wang, Hong Lin
  • Patent number: 10489903
    Abstract: The present invention discloses a stepwise refinement detection method for pavement cracks, processing pavement images comprising the following primary steps: extracting and processing marking lines, extracting ROA, adaptive threshold segmentation based on ROA, extracting ROC and region growth based on ROC direction feature weighting.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: November 26, 2019
    Assignee: WUHAN WUDA ZOYON SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Qingquan Li, Dejin Zhang, Min Cao, Hong Lin
  • Publication number: 20190234728
    Abstract: A three-dimensional measurement sensor based on line structured light, comprising a sensing head and a controller. The sensing head is used for collecting section data and attitude information of its own, and matching the section data with the self attitude information. The sensing head comprises a three-dimensional camera, an attitude sensor, a laser and a control sub-board, wherein the three-dimensional camera is installed at a certain angle relative to the laser, and acquires elevation and grey information about an object surface corresponding to laser rays using a triangulation principle. The attitude sensor, the three-dimensional camera and the laser are installed on the same rigid plane, and the attitude sensor reflects measurement attitude of the three-dimensional camera and the laser in real time. The controller is used for measuring and controlling the sensing head, performing data processing transmission and supporting external control.
    Type: Application
    Filed: August 26, 2016
    Publication date: August 1, 2019
    Applicant: WUHAN WUDA ZOYON SCIENCE AND TECHNOLOGY CO., LTD
    Inventors: Qingquan LI, Dejin ZHANG, Min CAO, Xinlin WANG, Hong LIN
  • Publication number: 20190197340
    Abstract: A method for extracting a surface deformation feature of an object based on linear scanning three-dimensional point cloud is disclosed comprising: performing data acquisition by using a three-dimensional measurement sensor based on line structured light, and obtaining a three-dimensional point cloud data of a surface of the object after data pre-processing; eliminating influences of abnormal data and textures on extraction of sectional main profiles, to accurately obtain the sectional main profiles of the object; obtaining a binary image based on deformation feature points extracted from sections, in conjunction with a deformation feature knowledge base, and preliminarily positioning a deformation region based on sub-block images to obtain a set of target morphology sub-blocks; then performing a morphological operation on deformation feature points in the set of target morphology sub-blocks, and generating a deformation region of confidence ROC, and then performing a region growth to extract a target using ge
    Type: Application
    Filed: January 25, 2016
    Publication date: June 27, 2019
    Applicant: WUHAN WUDA ZOYON SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Qingquan LI, Min CAO, Dejin ZHANG, Hong LIN, Ying CHEN
  • Publication number: 20190019115
    Abstract: A printed circuit board (PCB) panelization method and system. The method comprises the following steps: S1, reading daughterboard information of purchase orders, wherein the daughterboard information comprises the respective areas, delivery quantities and attributes of daughterboards; S2, performing comparison of the daughterboard information, screening for daughterboards having the same attributes, and establishing a panelization rule database; S3, selecting panels (PNL) satisfying the requirements according to panelization requirements; S4, selecting, from the daughterboards having the same attributes as the selected panels, daughterboards to be panelized together for the selected panels, and arranging the layout for the panelization.
    Type: Application
    Filed: August 26, 2016
    Publication date: January 17, 2019
    Applicants: GUANGZHOU FASTPRINT CIRCUIT TECH CO., LTD., SHENZHEN FASTPRINT CIRCUIT TECH CO., LTD., GUANGZHOU FASTPRINT ELECTRONIC CO., LTD.
    Inventors: Xianwen Lu, Dejin Zhang, Lijun Yi, Xi Chen
  • Publication number: 20180137612
    Abstract: The present invention discloses a stepwise refinement detection method for pavement cracks, processing pavement images comprising the following primary steps: extracting and processing marking lines, extracting ROA, adaptive threshold segmentation based on ROA, extracting ROC and region growth based on ROC direction feature weighting.
    Type: Application
    Filed: April 27, 2015
    Publication date: May 17, 2018
    Inventors: Qingquan LI, Dejin ZHANG, Min CAO, LIN HONG
  • Publication number: 20130239949
    Abstract: A solar water heater including an outer housing and a heat absorbing water tank fixed onto the interior surface of the outer housing. The heat absorbing water tank may have a water entrance and a water exit. A heat insulating layer may be filled underneath the heat absorbing water tank between the heat absorbing water tank and the outer housing, and a transparent heat insulating board may be placed on top of the heat absorbing water tank. The heat absorbing water tank may have web system formed by tubules, or may be in a rectangular shape with reinforced concaves. The heat absorbing water tank may be manufactured by using plastic materials.
    Type: Application
    Filed: March 6, 2013
    Publication date: September 19, 2013
    Inventors: Hanlin WANG, Dejin ZHANG