Patents by Inventor Lei Qian

Lei Qian 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: 11954455
    Abstract: Provided are a method and apparatus for translating words in a picture, an electronic device, and a storage medium. The method includes: recognizing words embedded in a target picture to obtain at least one text line, each of which corresponds to one line of words; perform paragraph combination on the at least one text line to obtain at least one text paragraph; translating the at least one text paragraph into at least one target text paragraph in a specified language; and replacing the words in the target picture with the at least one target text paragraph.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: April 9, 2024
    Assignee: Beijing Bytedance Network Technology Co., Ltd.
    Inventors: Lei Li, Jun Cao, Mingxuan Wang, Zhou Qian
  • Patent number: 11948344
    Abstract: The present invention relates to the field of inland vessel identification and ranging technology, and discloses a method, system, medium, equipment and terminal for identifying and ranging inland vessels. In the stage of vessel identification, based on the classical YOLO-V4 network model, the MobileNetV1 network is used to replace the feature extraction network CSPDarknet53 of the YOLO-V4 model; In the stage of vessel ranging, a binocular stereo vision ranging model is established, and the FSRCNN is used for super-resolution reconstruction of the original image pairs to enhance the vessel feature information; the ORB algorithm is used to achieve feature detection and matching at the sub-pixel level to obtain the parallax value between image pairs, and the depth information of the vessel target is obtained by triangulation principle and coordinate conversion.
    Type: Grant
    Filed: May 29, 2023
    Date of Patent: April 2, 2024
    Assignee: Wuhan University of Technology
    Inventors: Yuanzhou Zheng, Long Qian, Jingxin Cao, Xinyu Liu, Xuemeng Lv, Lei Li, Shiquan Qin
  • Patent number: 11948425
    Abstract: A self-contained game monitoring device captures images of a game table and identifies objects relevant to the game and identifies values associated with objects. During the course of the game, the device can detect a violation of the players' bets according to pre-configured game rules. At the end of each game, the device can determine the outcome of the game (e.g., the win/lose/push on each bet) and can determine whether the dealer's action (e.g., payout on each bet) is consistent with the device's judgment. If an inconsistent action is detected, the device can notify the dealer/supervisor about a potential mistake.
    Type: Grant
    Filed: May 6, 2022
    Date of Patent: April 2, 2024
    Assignee: Northernvue Corporation
    Inventors: Minglun Qian, Lei Zhang
  • Patent number: 11935533
    Abstract: Techniques are described for maintaining contextual data to support content-related actions. In an example, a system stories second content at a source. The source is associated with first content. The system sends, to a device, an object that indicates the first content. From the device at a first time, the system receives first data indicating a first request for the second content and including source information that indicates the source. From the device at a second time, the system receives second data indicating a second request for the second content, the second data including the source information, the first data and the second data received at a frequency indicated by the object. The system determines that the requests are associated with the first content based on the source information included in the received data, and stores third data indicating a presentation of the first content by the device.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: March 19, 2024
    Assignee: Amazon Technologies, Inc.
    Inventors: Allen Wang, Chongshu Qian, Srikanth Nori, Joshua Maxwell Rutheiser, Lei Raymond Lu, Jack Andrew Tomlinson, Matthew Brian Urtnowski
  • Publication number: 20240083556
    Abstract: The present invention relates to the technical field of water surface waste treatment, and in particular to a water surface floater collecting ship. The technical problems are: picking up floaters with the cooperation of labors consumes manpower and causes disturbance of water surface, which makes the floaters float further away with water waves, and the odor emitted by the collected floating waste will pollute the environment and affect the salvage efficiency. The technical solution is: a water surface floater collecting ship, comprising a hull, a collecting system, etc.; the left part of the hull is connected with the collecting system used for collecting waste.
    Type: Application
    Filed: September 1, 2023
    Publication date: March 14, 2024
    Inventors: Cheng Wu, Fengliang Dong, Xiaoyu Xue, Lei Gao, Peisong Wu, Yunfei Qian, Lijing Yao, Junyi Shi
  • Publication number: 20240081184
    Abstract: The present invention relates to the field of water surface treatment, and in particular to a cleaning ship for water surface treatment for harvesting water plants. In order to solve the technical problems that the existing cleaning ship cannot adapt to the waters of different depths for harvesting water plants, and a hull has low load utilization rate for the collected water plants and affects the overall working efficiency and the fuel economy of the hull, the present invention provides a cleaning ship for water surface treatment for harvesting water plants, comprising a steel belt conveying mechanism, a driven shaft and the like. The steel belt conveying mechanism drives the driven shaft to rotate.
    Type: Application
    Filed: September 1, 2023
    Publication date: March 14, 2024
    Inventors: Cheng Wu, Fengliang Dong, Xiaoyu Xue, Lei Gao, Peisong Wu, Yunfei Qian, Lijing Yao, Junyi Shi
  • Patent number: 11847469
    Abstract: Embodiments of the invention provide an intelligent device and a method for controlling a boot screen of the intelligent device, applicable to the intelligent device supporting video hardware decompression. The method comprises steps of: completing hardware initialization operation, and storing a preset image in the first storage area, thereby enabling the image layer to display the preset image; starting a system kernel which controls the video driver module, and starting the video layer through the video driver module; reading the corresponding preset image in the first storage area, converting the preset image into video data, and writing the video data into the second storage area, thereby enabling the video layer to display the video data; and starting an application access to the system. During the whole startup process of the intelligent device, the contents displayed on a screen are all seamlessly connected, so that a phenomenon of black screen does not occur.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: December 19, 2023
    Inventors: Tao Dong, Lei Qian, Yingwei Long, Zhiwei Gong, Lianghu Su, Siming Chen, Luan Yuan
  • Patent number: 11795394
    Abstract: A quantum dot (QD) composite material includes at least two structural units arranged sequentially along a radial direction. The at least two structural units include a type A1 structural unit and a type A2 structural unit. The type A1 QD structural unit has a gradient alloy composition structure with an energy level width increasing along the radial direction toward a surface, and the type A2 QD structural unit has a gradient alloy composition structure with the energy level width decreasing along the radial direction toward the surface. The two types of QD structural units are arranged alternately along the radial direction, and the energy levels in adjacent QD structural units having gradient alloy composition structures are continuous.
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: October 24, 2023
    Assignee: TCL TECHNOLOGY GROUP CORPORATION
    Inventors: Lei Qian, Yixing Yang, Zheng Liu
  • Patent number: 11788984
    Abstract: A glucose sensor electrode, a preparation method therefor and the use thereof are provided for the rapid and sensitive detection of glucose. The method involves: (1) performing an alkali heat treatment to form a nanoneedle-structured titanium dioxide on the surface of a titanium electrode; (2) forming micro-region grooves on a nanoneedle-structured titanium dioxide film layer to obtain a nanoneedle-structured titanium dioxide having a micropattern; (3) depositing a chlorine-doped polypyrrole in the grooves by using chronopotentiometry; (4) forming a nanocone-structured citric-acid-doped polypyrrole on the chlorine-doped polypyrrole by using chronopotentiometry; and (5) grafting an enzyme capable of detecting glucose to obtain the glucose sensor electrode. This simple and stable process is low in cost, efficiently grafts the enzyme capable of detecting glucose on the surface of the electrode, and provides a stable electrode with higher reliability for detecting glucose.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: October 17, 2023
    Assignees: South China University of Technology, Guangdong University of Technology
    Inventors: Chengyun Ning, Zhen'gao Wang, Peng Yu, Lei Qian, Zhengnan Zhou, Jun Xing, Junqi Chen, Lei Zhou, Guoxin Tan
  • Patent number: 11778891
    Abstract: Disclosed is a preparation method for crosslinked nanoparticle film. The preparation method comprises: dispersing nanoparticles in a solvent and uniformly mixing same, so as to obtain a nanoparticle solution; and using the nanoparticle solution to prepare a nanoparticle thin film by means of a solution method, and introducing a gas combination to promote a crosslinking reaction, so as to obtain a crosslinked nanoparticle thin film. By introducing a gas combination during film formation of nanoparticles, the present disclosure promotes the crosslinking among particles, and thus increases the electrical coupling among particles, lowers the potential barrier of carrier transmission, and increases the carrier mobility, thereby greatly improving the electrical properties of the thin film.
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: October 3, 2023
    Assignee: TCL TECHNOLOGY GROUP CORPORATION
    Inventors: Song Chen, Lei Qian, Yixing Yang, Weiran Cao, Chaoyu Xiang
  • Patent number: 11746293
    Abstract: A quantum dot (QD) composite material includes at least two structural units arranged sequentially along a radial direction. The QD composite material includes a type A3 QD structural unit and a type A4 QD structural unit. The type A3 QD structural units has a gradient alloy composition structure with an energy level width increasing along the radial direction toward a surface, and the type A4 QD structural unit has a homogeneous alloy composition structure. An inner part of the QD composite material includes one or more QD structural units having a gradient alloy composition structure, and energy levels in adjacent QD structural units having gradient alloy composition structures are continuous. The QD composite material includes one or more QD structural units having a homogeneous alloy composition structure in a region close to the surface.
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: September 5, 2023
    Assignee: TCL TECHNOLOGY GROUP CORPORATION
    Inventors: Lei Qian, Yixing Yang, Zheng Liu
  • Patent number: 11746292
    Abstract: A quantum dot (QD) composite material includes at least three QD structural units arranged sequentially along a radial direction. Among the at least three QD structural units, each QD structural unit at a center of the QD composite material and each QD structural unit at a surface of the QD composite material have a gradient alloy composition structure with an energy level width increasing along the radial direction from the center to the surface, along the radial direction, energy levels of adjacent gradient alloy composition structures of the QD structure units are continuous. A QD structural unit located between the QD structural units at the center and the QD structural units at the surface have a homogeneous alloy composition structure.
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: September 5, 2023
    Assignee: TCL TECHNOLOGY GROUP CORPORATION
    Inventors: Lei Qian, Yixing Yang, Zheng Liu
  • Patent number: 11744098
    Abstract: The present disclosure discloses a quantum dot light-emitting diode and a preparation method therefor, wherein the quantum dot light-emitting diode comprises an anode, a cathode, and a quantum dot light-emitting layer disposed between the anode and the cathode, further includes a first modified layer disposed between the anode and the quantum dot light-emitting layer, comprising PAMAM having transition metal cation doped. The present disclosure, by disposing the first modified layer between the anode and the quantum dot light-emitting layer to modify the anode, is able to increase work function of anode, thereby improving hole injection effect and performance of a device. The present disclosure, by disposing a second modified layer between the cathode and the quantum dot light-emitting layer to modify the cathode and reduce the work function of the cathode, thereby improves electron injection effect and performance of the device.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: August 29, 2023
    Assignee: TCL TECHNOLOGY GROUP CORPORATION
    Inventors: Zhurong Liang, Weiran Cao, Lei Qian
  • Patent number: 11659731
    Abstract: An integrated light-emitting device and a fabricating method thereof. The integrated light-emitting device includes a first electrode, an insulating layer, a second electrode, a light-emitting layer, and a third electrode which are sequentially laminated; the first electrode, the insulating layer, the second electrode, and the third electrode together constitute a field effect transistor unit, and the first electrode, the second electrode and the third electrode are respectively a gate, a source and a drain of the field effect transistor unit, and a surface of the insulating layer adjacent to the second electrode is provided with a nano-pit array structure configured for condensing light; and the second electrode, the light-emitting layer and the third electrode together constitute a light-emitting unit, the light-emitting unit configured to emit light toward the first electrode along the second electrode.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: May 23, 2023
    Assignee: TCL TECHNOLOGY GROUP CORPORATION
    Inventors: Hui Lei, Weiran Cao, Lei Qian
  • Publication number: 20230056821
    Abstract: The present invention relates to use of a fusion protein in the treatment of age-related macular degeneration. In particular, the present invention relates to use of a bispecific fusion protein inhibiting the activation of a complement pathway and a vascular endothelial growth factor (VEGF) pathway for the treatment of age-related macular degeneration. The present invention also relates to a pharmaceutical composition comprising the fusion protein and a method for treating age-related macular degeneration using the fusion protein.
    Type: Application
    Filed: December 23, 2020
    Publication date: February 23, 2023
    Inventors: Shujie LU, Lei QIAN
  • Publication number: 20220367812
    Abstract: Disclosed is a preparation method for crosslinked nanoparticle film. The preparation method comprises: dispersing nanoparticles in a solvent and uniformly mixing same, so as to obtain a nanoparticle solution; and using the nanoparticle solution to prepare a nanoparticle thin film by means of a solution method, and introducing a gas combination to promote a crosslinking reaction, so as to obtain a crosslinked nanoparticle thin film. By introducing a gas combination during film formation of nanoparticles, the present disclosure promotes the crosslinking among particles, and thus increases the electrical coupling among particles, lowers the potential barrier of carrier transmission, and increases the carrier mobility, thereby greatly improving the electrical properties of the thin film.
    Type: Application
    Filed: July 27, 2022
    Publication date: November 17, 2022
    Inventors: Song CHEN, Lei QIAN, Yixing YANG, Weiran CAO, Chaoyu XIANG
  • Patent number: 11499095
    Abstract: A quantum dot and its preparation method and application. The method includes the steps of forming a compound quantum dot core first, then adding a precursor of a metal element M2 to be alloyed into the reaction system containing the compound quantum dot core. The metal element M2 undergoes cation exchange with a metal element M1 in the existing compound quantum dot core, thereby forming a quantum dot with an alloy core. In this method, the distribution of alloyed components is not only adjusted by changing the feeding ratio of the metal elements and the non-metal elements, but also by a more real-time, more direct, and more precise adjustments through various reaction condition parameters of the actual reaction process, thereby achieving a more precise composition and energy level distribution control for alloyed quantum dots.
    Type: Grant
    Filed: December 25, 2018
    Date of Patent: November 15, 2022
    Assignee: TCL TECHNOLOGY GROUP CORPORATION
    Inventors: Yixing Yang, Lei Qian, Chengyu Yang, Jielong Qiu, Zhiwen Nie
  • Patent number: 11485908
    Abstract: A quantum dot light-emitting diode and a method for fabricating the same. The quantum dot light-emitting diode, includes: an anode, a cathode, and a quantum dot light-emitting layer arranged between the anode and the cathode. A composite electron transport layer is arranged between the cathode and the quantum dot light-emitting layer, and the composite electron transport layer contains an electron transport material and an ultraviolet absorbing material.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: November 1, 2022
    Assignee: TCL TECHNOLOGY GROUP CORPORATION
    Inventors: Zhurong Liang, Weiran Cao, Lei Qian
  • Publication number: 20220332846
    Abstract: The present invention relates to use of an anti-PCSK9 antibody and/or antibody fragment thereof and a pharmaceutical preparation comprising the same in a method for preventing or treating a cholesterol-related disease. Furthermore, the present invention relates to an anti-PCSK9 antibody or a liquid preparation thereof for preventing or treating the above disease.
    Type: Application
    Filed: September 18, 2020
    Publication date: October 20, 2022
    Inventors: Lei QIAN, Shirui ZHENG, Huan DENG
  • Patent number: 11401469
    Abstract: A quantum dot alloy nanomaterial, a preparation method therefor, and a semiconductor device. The quantum dot alloy nanomaterial comprises N alloy nanostructured units arranged in sequence in a radial direction, wherein N is larger than or equal to 2. The alloy nanostructured units comprise type A1 and type A2. Type A1 or type A2 is a gradient alloy component structure in which energy level width increases or decreases from inside out in the radial direction, respectively. In quantum dot alloy nanomaterial, alloy nanostructured units of type A1 and type A2 are alternately distributed, and the energy levels of adjacent alloy nanostructured units are continuous. The quantum dot alloy nanomaterial not only achieves higher luminous efficiency, but satisfies comprehensive performance requirements of a QLED device and a corresponding display technology for quantum dot alloy nanomaterial, and is an ideal material applicable to QLED and display technology.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: August 2, 2022
    Assignee: TCL TECHNOLOGY GROUP CORPORATION
    Inventors: Yixing Yang, Zheng Liu, Lei Qian