Patents by Inventor Dong Liang

Dong Liang 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: 20250141188
    Abstract: A giant cavity surface-emitting laser includes a giant cavity, a lower Bragg reflector, and an upper Bragg reflector. The giant cavity includes a multi-junction active region containing at least two active layers, and the giant cavity includes at least one of: an anti-reflection light reservoir located between the multi-junction active region and the lower Bragg reflector or an anti-reflection light reservoir located between the multi-junction active region and the upper Bragg reflector, where the anti-reflection light reservoir is configured to increase an optical field intensity peak of the anti-reflection light reservoir to a value higher than an optical field intensity peak of the multi-junction active region and store optical field energy, and a current confinement layer defining a light-emitting region is disposed within the multi-junction active region or near the outer side of the multi-junction active region.
    Type: Application
    Filed: April 3, 2023
    Publication date: May 1, 2025
    Inventors: Dong LIANG, Cheng ZHANG
  • Publication number: 20250139745
    Abstract: Disclosed is a method for enhancement of a low-light image based on reinforcement learning and aesthetic evaluation. The method include: generating images of non-normal luminance under different lighting scenes, and constructing a training dataset for a reinforcement learning system based on the images; initializing the training dataset, a policy network, and a value network; updating, based on a no-reference reward score and an aesthetic assessment reward score, the policy network and the value network; completing model training and outputting an enhanced image result. By expanding the action space range defined in reinforcement learning, the enhancement operations for the input low-light image gain a greater dynamic range, offering higher flexibility for real-world scenarios and better meeting low-light image enhancement needs.
    Type: Application
    Filed: December 10, 2024
    Publication date: May 1, 2025
    Applicant: NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS
    Inventors: Dong LIANG, Ling LI, Shengjun HUANG, Songcan CHEN
  • Publication number: 20250109457
    Abstract: The present disclosure relates to the technical field of magnesium metallurgy, and in particular to a device and method for magnesium smelting by vacuum carbothermal reduction of calcined dolomite. The device includes a reaction chamber, a condensation chamber, a first temperature regulation module and an air pressure regulation module, and the reaction chamber is communicated with the condensation chamber via a gas-guide tube. In the present disclosure, different condensation zones are utilized to sequentially condense gaseous products based on dew points, effectively preventing impurities from entering the condensation process of magnesium.
    Type: Application
    Filed: December 12, 2024
    Publication date: April 3, 2025
    Inventors: Yang Tian, Tingzhuang Ma, Bin Yang, Baoqiang Xu, Wenlong Jiang, Fei Wang, Yifu Li, Lipeng Wang, Dong Liang, Rong Yu
  • Patent number: 12263402
    Abstract: A trigger driving apparatus and hand-held terminal having said apparatus are provided. Wherein the trigger driving apparatus comprises a bracket (8) and a movable trigger housing arranged on the bracket, and further comprises: a drive device, wherein a drive shaft of the drive device is connected to one end of a link rod mechanism, the other end of the link rod mechanism is connected to the trigger housing, and the drive shaft is configured to drive the trigger housing to move; a detection device is configured to detect the state of the trigger housing; a control device is configured to receive the state signal detected by the detection device, and control the output torque of the drive device according to the state signal.
    Type: Grant
    Filed: October 31, 2020
    Date of Patent: April 1, 2025
    Assignee: GOERTEK INC.
    Inventors: Xuefang Teng, Yanlong Liu, Dong Liang, Lin Geng, Xing Zhang
  • Patent number: 12257497
    Abstract: A gamepad and a joystick feedback force apparatus thereof are disclosed. The joystick feedback force apparatus comprises a joystick that is configured to accept a user's operation and is rotatably installed in a casing of the gamepad. It further comprises a torque output device and a deceleration device. An output shaft of the torque output device is connected with an input end of the deceleration device, an output end of the deceleration device is connected with a rotating shaft of the joystick to apply a torque output by the torque output device to the rotating shaft. When the user operates the joystick to rotate, a certain torque is applied to the rotating shaft after being decelerated by the deceleration device, namely, the corresponding torque is applied to the joystick to form a feedback force to the user.
    Type: Grant
    Filed: October 31, 2020
    Date of Patent: March 25, 2025
    Assignee: GOERTEK INC.
    Inventors: Zhenzhen Liu, Yanlong Liu, Xing Zhang, Dong Liang, Lin Geng
  • Publication number: 20250084224
    Abstract: Described herein is a process for preparing polyurethane sheet/laminate with reduced bubbles, including the steps of applying a polyurethane system obtained by mixing an isocyanate component (A) and a polyol composition component (B) to form a base coat layer, where the components (A) and (B) are kept separately in tanks under vacuum before mixing, and the application of the polyurethane system is implemented via knife coating under relative humidity of 65% or below. Further described herein are a polyurethane sheet/laminate prepared by the described process and a synthetic leather made from the polyurethane sheet/laminate.
    Type: Application
    Filed: September 12, 2022
    Publication date: March 13, 2025
    Inventors: Zhong Kai ZHANG, Dong Liang WANG
  • Patent number: 12224057
    Abstract: A medical image processing method and processing apparatus, and a computer readable storage medium. The method includes: obtaining a to-be-processed image; performing a feature extraction on the to-be-processed image to obtain a corresponding feature image; and re-determining a pixel value of each pixel in the to-be-processed image based on first information and second information of a corresponding pixel in the feature image, and processing the to-be-processed image; wherein the first information is information of a pixel adjacent to the corresponding pixel in the features image, and the second information is information of a pixel that is not adjacent to and is similar to the corresponding pixel in the features image.
    Type: Grant
    Filed: May 8, 2022
    Date of Patent: February 11, 2025
    Assignee: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY
    Inventors: Na Zhang, Hairong Zheng, Xin Liu, Zhanli Hu, Zhiyuan Huang, Dong Liang
  • Patent number: 12201897
    Abstract: A gamepad and a joystick feedback force device therefor are disclosed. The joystick feedback force device comprises a joystick that is configured to accept a user's operation and is rotatably installed in a casing of the gamepad. The joystick feedback force device further comprises a torque output device, and an output shaft of the torque output device is connected with a rotating shaft of the joystick, so that a torque is applied to the rotating shaft to form a feedback force to the joystick.
    Type: Grant
    Filed: October 31, 2020
    Date of Patent: January 21, 2025
    Assignee: GOERTEK INC.
    Inventors: Zhenzhen Liu, Yanlong Liu, Dong Liang, Lin Geng, Xing Zhang
  • Publication number: 20250011234
    Abstract: A method for preparing a construction material for a roadbed and a pavement by using construction solid waste-based geopolymers includes: preparing a construction solid waste-based geopolymer cementitious material and construction solid waste-based recycled sand by using construction solid wastes, and then preparing the construction material by batching, stirring, molding, and curing the cementitious material and the recycled sand with aggregates and water. Barium hydroxide is determined as a main activator and a high-pressure activation is performed, thereby promoting a dissolution efficiency of active silicon and aluminum in the construction solid wastes; and a compensator is added to promote polymerization to obtain the cementitious material with a compact three-dimensional network structure.
    Type: Application
    Filed: June 26, 2024
    Publication date: January 9, 2025
    Inventors: Zonggang Quan, Dong Liang, Yuanyuan Chen, Keying Wang, Yunning Zhang
  • Patent number: 12190568
    Abstract: Methods and apparatuses for training a magnetic resonance imaging model, electronic devices and computer readable storage media are provided.
    Type: Grant
    Filed: August 16, 2022
    Date of Patent: January 7, 2025
    Assignee: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY
    Inventors: Hairong Zheng, Xin Liu, Na Zhang, Zhanli Hu, Qihang Chen, Dong Liang, Yongfeng Yang
  • Publication number: 20240401169
    Abstract: The present disclosure relates to a device and method for recovering arsenic and gallium. A closed furnace body is in communication with a vacuuming pipe, and the vacuuming pipe is connected to a vacuuming mechanism. The closed furnace body includes a first furnace body, a second furnace body and a third furnace body. A first heating mechanism and a graphite crucible are arranged inside the first furnace body, the first heating mechanism being used for heating the graphite crucible. A first collection cylinder is in communication with a second collection cylinder. The device for recovering arsenic and gallium of the present disclosure is arranged with a structure for realizing directional condensation of gallium arsenide clusters and arsenic vapor, respectively, to realize high-purity recovery of arsenic and gallium.
    Type: Application
    Filed: August 9, 2024
    Publication date: December 5, 2024
    Inventors: Yang Tian, Haosong Yu, Bin Yang, Xiumin Chen, Baoqiang Xu, Wenlong Jiang, Yifu Li, Fei Wang, Yong Deng, Lipeng Wang, Dong Liang, Dong Wang
  • Patent number: 12153175
    Abstract: A method for processing positron emission tomography data is provided, this method includes: obtaining a first coordinate and a second coordinate respectively corresponding to two ends of a response line to be processed; determining corresponding dimensional coordinates of the response line to be processed in a sinogram based on the first coordinate and the second coordinate; and generating the sinogram corresponding to the response line to be processed based on the dimensional coordinates. According to this method, the amount of calculation of system matrix is reduced, the accuracy of position information of the generated response line is improved, and the accuracy of generated sinogram is improved accordingly.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: November 26, 2024
    Assignee: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES
    Inventors: Zhanli Hu, Yongfeng Yang, Chunhui Zhang, Zhonghua Kuang, Xiaohui Wang, San Wu, Dong Liang, Xin Liu, Hairong Zheng
  • Publication number: 20240388367
    Abstract: The technology of this application relates to a signal processing apparatus having functions of communication and positioning and sensing, so that complexity of a photoelectric detector array is reduced. The apparatus includes N photoelectric detector unit subarrays and M output ports respectively connected to the N photoelectric detector unit subarrays, where at least two of the N photoelectric detector unit subarrays are different, a quantity of photoelectric detector units included in at least one of the N photoelectric detector unit subarrays is greater than or equal to 2, N is an integer greater than or equal to 2, and M is an integer less than or equal to N. A photoelectric detector unit in the N photoelectric detector unit subarrays is configured to perform photoelectric conversion on an optical signal, to obtain a first electrical signal, and the M output ports are configured to output the first electrical signal.
    Type: Application
    Filed: July 29, 2024
    Publication date: November 21, 2024
    Inventors: Dong LIANG, Jianan ZHANG, Junping ZHANG
  • Publication number: 20240375177
    Abstract: Provided are a vacuum distillation furnace, and a method for preparing high-purity copper particles. In view of the fact that high-purity copper prepared by the traditional method in the current industrial production has an unsatisfactory purity, a high impurity content, and a complicated composition, a vacuum distillation method is adopted. During the vacuum distillation method, most of valuable metals in a copper matrix are volatilized and enter into a gas phase, such that the metals are separated from the copper matrix, thereby allowing the purification of copper; and copper powder particles volatilized to a condensation plate have a smooth surface and a purity of 5 N grade or more.
    Type: Application
    Filed: June 20, 2023
    Publication date: November 14, 2024
    Inventors: Yang TIAN, Dong WANG, Haosong YU, Bin YANG, Baoqiang XU, Wenlong JIANG, Yifu LI, Fei WANG, Dong LIANG, Shuangping WANG, Qingsong LI
  • Publication number: 20240376246
    Abstract: The present invention relates to a one-pot process for the production of poly carbodiimide cured polymers. comprising a reaction of (a) at least one polycarbodiimide with two or more carbodiimide functionalities per molecule. (b) at least one polyol with two or more hydroxyl functionalities per molecule, and (c) at least one cyclic carboxylic anhydride.
    Type: Application
    Filed: September 9, 2022
    Publication date: November 14, 2024
    Inventors: Xiao Yu SUN, Dong LIANG, Chang Xi LI, Hai Sheng WU, Li Chao ZHU, Jia Yue HUANG, Zhi Zhong CAI
  • Publication number: 20240291242
    Abstract: Provided VCSEL includes emitters arranged in an array disposed on a surface of a substrate, a first passivation layer disposed on a surface of the emitters facing away from the substrate and provided with a first via, a second passivation layer provided with a second via, and a first pad. The first pad includes first sub-pads and at least one second sub-pad, a number of the first sub-pads is equal to a number of the emitters, the first sub-pads are disposed on a side of the first passivation layer facing away from the substrate and connected to the emitters through the first via, the second passivation layer covers the first sub-pads and the first passivation layer, and the at least one second sub-pad is connected to the first sub-pads through the second via.
    Type: Application
    Filed: February 15, 2022
    Publication date: August 29, 2024
    Inventors: Weicheng WENG, Dong LIANG, Song LIU
  • Patent number: 12065717
    Abstract: The present disclosure relates to a preparation process of a Ti3AlC2 ceramic phase-toughened molybdenum alloy. The preparation process includes: mixing MoO2 and Ti3AlC2 powders, sieving to obtain a mixed powder, and then conducting high-temperature hydrogen reduction; mixing a resulting reduced powder with a coarse-grained Mo powder to obtain a precursor powder; putting the precursor powder into a cladding material to allow hot-pressed sintering; subjecting an obtained sintered molybdenum alloy to high-temperature treatment and thermoplastic processing in sequence; and annealing an obtained processed molybdenum alloy to obtain a high-strength and high-toughness molybdenum alloy. In the present disclosure, a Ti3AlC2-containing ultrafine powder prepared by reduction is mixed with the commercial coarse-grained molybdenum powder in a certain proportion to obtain the precursor powder.
    Type: Grant
    Filed: March 13, 2024
    Date of Patent: August 20, 2024
    Assignee: HENAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Shizhong Wei, Lu Yang, Xinyuan Zheng, Xiran Wang, Dong Liang, Yang Zhao
  • Publication number: 20240266804
    Abstract: Provided are a VCSEL with a small divergence angle, a VCSEL chip with a small divergence angle, and a light source for a LIDAR system. The laser includes an active layer and a lower Bragg reflection layer and an upper Bragg reflection layer on two opposite sides of the active layer. A light storage layer is disposed at at least one of a position between the lower Bragg reflection layer and the active layer or a position between the upper Bragg reflection layer and the active layer, where the light storage layer is configured to store energy of a standing wave light field. An antireflection layer having an antireflection interface is disposed between the light storage layer and the active layer, where the antireflection layer is configured to increase a maximal light field intensity of the light storage layer to be higher than a maximal light field intensity of the active layer.
    Type: Application
    Filed: March 28, 2022
    Publication date: August 8, 2024
    Inventors: Dong LIANG, Cheng ZHANG
  • Patent number: 12057256
    Abstract: A high-frequency transformer includes: an iron core, primary windings and secondary windings, wherein the iron core is of an integrated equilateral triangle structure, the primary windings and the secondary windings are uniformly wound around three sides of the iron core, and the primary windings and/or the secondary windings are symmetrically distributed on the three sides.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: August 6, 2024
    Assignees: GLOBAL ENERGY INTERCONNECTION RESEARCH INSTITUTE CO., LTD., STATE GRID CORPORATION OF CHINA, State Grid Shanghai Electric Power Co. Ltd.
    Inventors: Zhanfeng Deng, Guoliang Zhao, Jun Ge, Guangyao Qiao, Xiaolin Mo, Dong Liang, Zhe Zhou
  • Publication number: 20240258770
    Abstract: In the manufacturing method of a vertical cavity surface emitting laser, through the same etching process, a first passivation layer located on a side of an N-type ohmic metal layer away from a substrate is etched to form a first via on the side of the N-type ohmic metal layer away from the substrate to expose the N-type ohmic metal layer, and a first passivation layer located on a side of the P-type ohmic contact layer away from the substrate is etched in a mesa structure to form a second via on the side of the P-type ohmic contact layer away from the substrate in the mesa structure to expose the P-type ohmic contact layer.
    Type: Application
    Filed: February 10, 2022
    Publication date: August 1, 2024
    Inventors: Weicheng WENG, Dong LIANG, Song LIU, Weizun DING, Junyan PENG