Patents by Inventor Yongjun WANG

Yongjun WANG 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).

  • Publication number: 20230171375
    Abstract: The present technology is directed to determining an accuracy of an infrared (IR) camera, and more particularly, validating a distortion accuracy of an IR camera. The present technology can receive one or more images of a calibration harp captured by the IR camera, wherein the one or more images include a plurality of lines corresponding to a plurality of strings of the calibration harp. The present technology can further determine a degree of distortion of the plurality of lines based on a distortion error coefficient, wherein the distortion error coefficient is computed based on edge points of the plurality of lines on the one or more images.
    Type: Application
    Filed: November 29, 2021
    Publication date: June 1, 2023
    Inventors: Yongjun Wang, Marco Antonio Gaxiola Michel, Daniel Chou
  • Patent number: 11651935
    Abstract: An improved charged particle beam inspection apparatus, and more particularly, a particle beam inspection apparatus for detecting a thin device structure defect is disclosed. An improved charged particle beam inspection apparatus may include a charged particle beam source to direct charged particles to a location of a wafer under inspection over a time sequence. The improved charged particle beam apparatus may further include a controller configured to sample multiple images of the area of the wafer at difference times over the time sequence. The multiple images may be compared to detect a voltage contrast difference or changes to identify a thin device structure defect.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: May 16, 2023
    Assignee: ASML Netherlands B.V.
    Inventors: Chih-Yu Jen, Long Ma, Yongjun Wang, Jun Jiang
  • Publication number: 20230147966
    Abstract: A computer-implemented method includes receiving, by a computing system, a first image of an optical target from a camera. The first image is associated with a first position of the camera. The method also includes receiving, by the computing system, a second image of the optical target, Wherein the second image is associated with a second position of the camera. The method also includes determining an estimated displacement between the first position of the camera and the second position of the camera based on the first image and the second image. The method further includes determining a focal length based on the estimated displacement and a measured displacement of the camera between the first position and the second position.
    Type: Application
    Filed: January 11, 2023
    Publication date: May 11, 2023
    Inventors: Yongjun Wang, Daniel Chou, Nigel Rodrigues
  • Publication number: 20230073769
    Abstract: A spatial data abrupt change inspection method in national territory development planning, an application system and a cloud platform are disclosed. The spatial data abrupt change inspection method in national territory development planning includes the steps of preprocessing of abrupt change inspection data and abrupt change inspection; the application system applies the spatial data abrupt change inspection method in national territory development planning to perform abrupt change inspection; and the cloud platform is configured with the application system. After preprocessing of a superior user, all comparison computing is based on comparison of attribute data. A spatial planning cloud support platform is used for computing in a distributed manner.
    Type: Application
    Filed: November 13, 2022
    Publication date: March 9, 2023
    Inventors: Fei Gao, Nana Li, Chengcheng Zhang, Yongjun Wang, Bei Huang, Hua Li, Xianpeng Xu
  • Patent number: 11587258
    Abstract: A computer-implemented method for focal length validation may include receiving, by a computing system, initial image data for an optical target from a camera. The method may also include determining a distortion parameter associated with the camera, based on the initial image data. The method may also include receiving, by the computing system, a first image of the optical target, wherein the first image is associated with a first position of the camera. The method may also include receiving, by the computing system, a second image of the optical target, wherein the second image is associated with a second position of the camera. The method may also include determining an estimated displacement between the first position of the camera and the second position of the camera based on the first image and the second image. The method may further include determining a focal length based on the estimated displacement and a measured displacement of the camera between the first position and the second position.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: February 21, 2023
    Assignee: GM Cruise Holdings LLC.
    Inventors: Yongjun Wang, Daniel Chou, Nigel Rodrigues
  • Publication number: 20220402444
    Abstract: A polyhedral sensor target includes multiple surfaces. A housing, such as a vehicle, may include a camera and a distance measurement sensor, such as a light detection and ranging (LIDAR) sensor. The housing may move between different positions during calibration, for instance by being rotated atop a turntable. The camera and distance measurement sensor may both capture data during calibration, from which visual and distance measurement representations of the polyhedral sensor target are identified. The camera and distance measurement sensor are calibrated based on their respective representations, for example by mapping vertices within the representations to the same location.
    Type: Application
    Filed: August 19, 2022
    Publication date: December 22, 2022
    Inventor: Yongjun Wang
  • Publication number: 20220332356
    Abstract: The present invention discloses a platform and method for intelligent management of integration of construction and maintenance of rail transportation work, comprising: a work construction information sharing module based on GIS and BIM is configured to realize the integration and data sharing between BIM model of each station and section of the rail transportation and a 3D geological management platform of rail transportation; a work construction informatization management module based on progress control is configured to provide an information control of work preparation plan, contract performance and measurement and pricing, safety and quality investigation, risk early warning and design change in the work construction stage; a rail transportation operation and maintenance module based on the integration of construction and maintenance is configured to provide an information management and control of equipment, materials and safety risk early warning in the rail transportation operation and maintenance sta
    Type: Application
    Filed: November 22, 2019
    Publication date: October 20, 2022
    Applicant: JINAN RAIL TRANSIT GROUP CO., LTD.
    Inventors: Linhai LU, Bingbing HU, Yongjun WANG, Jiahai LIU, Xuezeng LIU, Zhiguo LI, Lianyong SUN, Yongli HU, Gang LI, Zhihai SUN
  • Patent number: 11453348
    Abstract: A polyhedral sensor target includes multiple surfaces. A housing, such as a vehicle, may include a camera and a distance measurement sensor, such as a light detection and ranging (LIDAR) sensor. The housing may move between different positions during calibration, for instance by being rotated atop a turntable. The camera and distance measurement sensor may both capture data during calibration, from which visual and distance measurement representations of the polyhedral sensor target are identified. The camera and distance measurement sensor are calibrated based on their respective representations, for example by mapping vertices within the representations to the same location.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: September 27, 2022
    Assignee: GM Cruise Holdings LLC
    Inventor: Yongjun Wang
  • Publication number: 20220205632
    Abstract: A biomass burner includes a hopper, a ventilating chamber, a U-shaped fire box, a feeding cylinder including an output end, an auger, a feeding motor including a driving wheel, an ignition device, an ignition motor, a ventilation plate, a first poking device, a second poking device, a first poking motor configured to drive the first poking device, a second poking motor configured to drive the second poking device, a first fixed plate, and a second fixed plate. The hopper is disposed below the feeding cylinder. The feeding cylinder is disposed through the ventilating chamber and the output end of the feeding cylinder extends into the U-shaped fire box. The auger is disposed in the feeding cylinder and is driven by the feeding motor; one end of the auger is provided with a driven gear, and the driven gear is meshed with the driving wheel of the feeding motor.
    Type: Application
    Filed: December 30, 2021
    Publication date: June 30, 2022
    Inventors: Jian'an WANG, Yikuan FAN, Haobin ZHAO, Fengjie WEI, Fangfang LI, Lei HE, Pengfei WANG, Yongjun WANG, Jianhua LI, Zhaopeng SONG, Feilong SHI, Longfei WANG, Weidong GUAN
  • Patent number: 11347149
    Abstract: This invention relates to a photoresist stripper composition. The photoresist stripper composition according to the present invention comprises at least one choline compound; at least one polar aprotic solvent; and water; the weight percentage of the choline compound is from 2.5 to 50%, preferably from 5 to 50%, more preferably from 7 to 30%, and most preferably from 9 to 18% by weight based on the total weight of the composition. The photoresist stripper composition according to the present invention exhibits excellent photoresist cleaning performance and low etching to the substrate.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: May 31, 2022
    Assignee: Henkel AG & Co. KGaA
    Inventors: Tengfang Wang, Yongjun Wang
  • Patent number: 11295540
    Abstract: A sensor calibration target includes dark markings on a light substrate. The dark markings absorb more heat from a heat source than the light substrate, and are visually distinguishable from the light substrate. Thus, the dark markings are discernable by the both a camera and an infrared sensor of a vehicle during vehicle sensor calibration. The sensor calibration target may otherwise non-metallic but include a metallic feature for calibrating a radio detection and ranging (RADAR) sensor. The sensor calibration target may also include one or more apertures in the substrate for calibrating a light detection and ranging (LIDAR) sensor.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: April 5, 2022
    Assignee: GM Cruise Holdings, LLC
    Inventors: Yongjun Wang, Derek Wu, Ankit Rohatgi
  • Publication number: 20220080339
    Abstract: The present invention discloses a xylose hydrolysate decolorization and filtration device. A hydrolysate is filtered through a to-be-cleaned filtering machine to form a waste carbon liquid with a light transmittance of 7% to 10%, the waste carbon liquid is subjected to pressure filtration through a filter press to form a plate and frame liquid, the plate and frame liquid is filtered through a to-be-passed-through filtering machine to form a pre-decolorized liquid with a light transmittance of 30% to 35%, the pre-decolorized liquid enters a decolorization tank and is mixed with added new carbon in the decolorization tank to form a new carbon liquid, and the new carbon liquid is filtered through a standby filtering machine to form a decolorized liquid with a light transmittance of greater than 65%. The present invention further discloses a xylose hydrolysate decolorization and filtration method using the device.
    Type: Application
    Filed: November 23, 2021
    Publication date: March 17, 2022
    Inventors: Zhe LI, Xuesong Jiang, Qiang Ma, Xiaoyang Zheng, Yongjun Wang, Weimin Fu, Xialjun Chu
  • Publication number: 20220005666
    Abstract: An improved charged particle beam inspection apparatus, and more particularly, a particle beam inspection apparatus for detecting a thin device structure defect is disclosed. An improved charged particle beam inspection apparatus may include a charged particle beam source to direct charged particles to a location of a wafer under inspection over a time sequence. The improved charged particle beam apparatus may further include a controller configured to sample multiple images of the area of the wafer at difference times over the time sequence. The multiple images may be compared to detect a voltage contrast difference or changes to identify a thin device structure defect.
    Type: Application
    Filed: July 1, 2021
    Publication date: January 6, 2022
    Inventors: Chih-Yu JEN, Long Ma, Yongjun Wang, Jun Jiang
  • Publication number: 20210316669
    Abstract: A polyhedral sensor target includes multiple surfaces. A housing, such as a vehicle, may include a camera and a distance measurement sensor, such as a light detection and ranging (LIDAR) sensor. The housing may move between different positions during calibration, for instance by being rotated atop a turntable. The camera and distance measurement sensor may both capture data during calibration, from which visual and distance measurement representations of the polyhedral sensor target are identified. The camera and distance measurement sensor are calibrated based on their respective representations, for example by mapping vertices within the representations to the same location.
    Type: Application
    Filed: April 14, 2020
    Publication date: October 14, 2021
    Inventor: Yongjun Wang
  • Publication number: 20210303898
    Abstract: A sensor calibration target includes dark markings on a light substrate. The dark markings absorb more heat from a heat source than the light substrate, and are visually distinguishable from the light substrate. Thus, the dark markings are discernable by the both a camera and an infrared sensor of a vehicle during vehicle sensor calibration. The sensor calibration target may otherwise non-metallic but include a metallic feature for calibrating a radio detection and ranging (RADAR) sensor. The sensor calibration target may also include one or more apertures in the substrate for calibrating a light detection and ranging (LIDAR) sensor.
    Type: Application
    Filed: March 30, 2020
    Publication date: September 30, 2021
    Inventors: Yongjun Wang, Derek Wu, Ankit Rohatgi
  • Publication number: 20210244657
    Abstract: Disclosed in the present invention are an edaravone pharmaceutical composition and an application thereof as a sublingual preparation, the pharmaceutical composition containing edaravone or a salt thereof and mannitol. A sublingual administration preparation can avoid the first-pass effect of the liver, and samples feature good stability, convenience of transport and of use, among other advantages.
    Type: Application
    Filed: December 27, 2018
    Publication date: August 12, 2021
    Applicants: BEIJING TIANTAN HOSPITAL, CAPITAL MEDICAL UNIVERSITY, NANJING BAIXINYU PHARMACEUTICAL CO. LTD.
    Inventors: Yilong WANG, Yongjun WANG, Xingquan ZHAO, Anyuan ZHANG
  • Patent number: 11056311
    Abstract: An improved charged particle beam inspection apparatus, and more particularly, a particle beam inspection apparatus for detecting a thin device structure defect is disclosed. An improved charged particle beam inspection apparatus may include a charged particle beam source to direct charged particles to a location of a wafer under inspection over a time sequence. The improved charged particle beam apparatus may further include a controller configured to sample multiple images of the area of the wafer at difference times over the time sequence. The multiple images may be compared to detect a voltage contrast difference or changes to identify a thin device structure defect.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: July 6, 2021
    Assignee: ASML Netherlands B.V.
    Inventors: Chih-Yu Jen, Long Ma, Yongjun Wang, Jun Jiang
  • Patent number: D942394
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: February 1, 2022
    Inventor: Yongjun Wang
  • Patent number: D956273
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: June 28, 2022
    Inventor: Yongjun Wang
  • Patent number: D981011
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: March 14, 2023
    Inventor: Yongjun Wang