Patents by Inventor Xiaoping Zhang

Xiaoping 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).

  • Publication number: 20210116977
    Abstract: A mainboard fixing device, a display module and a display device are provided. The mainboard fixing device includes a printed circuit board (PCB) mainboard, a first elastic member and a second elastic member. The first elastic member and the second elastic member are disposed at a first side and a second side of the PCB mainboard, respectively. The first side and the second side are symmetric with each other.
    Type: Application
    Filed: March 29, 2018
    Publication date: April 22, 2021
    Inventors: Fangyi Liu, Xiaoping Zhang, Xin Wang, Yangli Zheng, Jianguo Zhu, Futeng Li, Jianru Yang
  • Publication number: 20210067036
    Abstract: Disclosed a method for determining a stability range of control parameters of a Buck-Boost converter based on segmented delay feedback control, including by taking inductor current and capacitor current in a Buck-Boost converter as state variables, establishing state differential equations respectively for two different level states of the converter under the pulse input voltage; based on different input voltages, correcting inductor reference current to obtain novel inductor reference current; based on the state differential equations and the novel inductor reference current, obtaining a discrete iteration mapping model of a system; based on the discrete iteration mapping model, obtaining function equations corresponding to an upper limit and a lower limit of control parameters of the converter when the segmented delay feedback control is used to realize the stable operation of the system under the pulse input voltage, and determining a stability range of the corresponding control parameters by the function
    Type: Application
    Filed: November 12, 2020
    Publication date: March 4, 2021
    Inventors: Xiaoping ZHANG, Ruirui ZHANG, Zhi WU
  • Patent number: 10936770
    Abstract: A mathematical model between the optimization objects and the optimization objectives is established, with finite-time control parameters as optimization objects, and a total harmonic distortion of an output voltage, a deviation signal of a capacitor voltage and a deviation signal of an output current of BBMC as optimization objectives. A multi-objective optimization satisfaction function and a multi-objective optimization fitness function are established. Multiple sets of optimal finite-time control parameters are iteratively optimized using an adaptive wolf pack algorithm. Functional relationships between respective optimal finite-time control parameters and the corresponding actual output current of BBMC are obtained using a numerical fitting method. Optimal control parameters corresponding to any load are obtained according to the obtained functional relationships.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: March 2, 2021
    Assignee: Hunan University of Science and Technology
    Inventors: Xiaoping Zhang, Ji Liu
  • Patent number: 10915692
    Abstract: Taking parameters of a main circuit in a BBMC as optimization objects, and a total harmonic distortion of an output voltage of the BBMC, a deviation between an actual output current and a corresponding rated output current as optimization objectives, a mathematical model between optimization objects and optimization objectives is established. A multi-objective optimization satisfaction function and a multi-objective optimization fitness function are established by selecting a current rating as a rated output current of the BBMC. An adaptive wolf pack optimization algorithm is adopted to obtain a set of optimal parameters of the main circuit. The rated output current is changed to obtain n sets of optimal parameters, and functional relationships between the optimal parameters of the main circuit in the BBMC are obtained using a numerical fitting method. Optimal parameters of the main circuit corresponding to different current ratings are determined according to the functional relationships.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: February 9, 2021
    Assignee: Hunan University of Science and Technology
    Inventors: Xiaoping Zhang, Ji Liu, Ruirui Zhang
  • Publication number: 20210027183
    Abstract: A method and system for probability distribution forecast evaluation are disclosed. The present disclosure is directed to embodiments of a system that evaluates probability distribution forecasts by acquiring one or more of a probability distribution forecast, a probability distribution realization, and a prior knowledge of the probability distribution forecast. The system disclosed herein may then compute an accuracy score and an information score based on the acquired forecast, realization, and prior knowledge. In evaluating the forecast, a performance score may also be computed based on the accuracy score and the information score.
    Type: Application
    Filed: October 9, 2020
    Publication date: January 28, 2021
    Inventors: Xiaoping Zhang, David Kedmey, Fang Wang
  • Publication number: 20210011813
    Abstract: This application disclose an information backup method and a related device, to ensure continuity of a user service. The method is applied to a communications system including a primary device, a secondary device, and a cloud device, and the method is performed by the primary device. The method includes: sending a first identity notification to the cloud device, where the first identity notification is a notification indicating that the primary device has a primary device identity; and uploading obtained first user information to the cloud device when determining that a communication status of the cloud device is normal, where the first user information is stored by the cloud device and provided to the secondary device, and the first user information is to-be-backed-up information of user equipment that gets online from the primary device when the communication status of the cloud device is normal.
    Type: Application
    Filed: September 29, 2020
    Publication date: January 14, 2021
    Inventors: Xiaoping Zhang, Yaokun Zhang, Quanxi Zhao
  • Publication number: 20210013820
    Abstract: A modeling method of a stator winding air gap for temperature field analysis of an AC traction motor includes: changing the width of an air gap of a stator winding equivalent model according to a set value of spacing; establishing a three-dimensional finite element model of the AC traction motor with the stator winding air gap; based on the three-dimensional finite element model of different widths of the air gap, analyzing a temperature field to obtain a temperature field distribution diagram of the AC traction motor; carrying out the numerical fitting according to data in the temperature distribution diagram to obtain a function relation between the air-gap width and the temperature of the stator winding equivalent model; and by measuring the actual temperature of a motor stator winding, calculating an optimal air-gap width corresponding to the modeling of the stator winding of the current AC traction motor.
    Type: Application
    Filed: September 30, 2020
    Publication date: January 14, 2021
    Inventors: Xiaoping ZHANG, Ping LIU, Sijian KUANG, Zhu ZHANG
  • Patent number: 10889532
    Abstract: The present invention relates to a manufactured graphene/metal or metalloid core-shell composite and manufacturing method thereof. The method comprising: using a modified graphene oxide as a base, then performing concentration and steam drying followed by organic solvent replacement to obtain a modified graphene oxide organic solvent; using a liquid-phase self-assembly method to coat the modified graphene oxide onto a surface of the metal or metalloid to form a graphene/metal or metalloid coated particle solution, then filtering and drying to obtain the graphene metal/metalloid core-shell composite. The method improves upon a conventional organic and inorganic material coating technique, and reduces an impact of a water-based solvent and high temperature on a highly reactive metal and metalloid, thereby expanding the feasibility of the coating technique and addressing a barrier of applicability of graphene and reactive metal or metalloid in the field of energetic materials.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: January 12, 2021
    Assignee: HUBEI INSTITUTE OF AEROSPACE CHEMOTECHNOLOGY
    Inventors: Jian Gu, Xiaoping Zhang, Aimin Pang
  • Patent number: 10884299
    Abstract: A display module, a display device, and a transparent optical adhesive layer structure are disclosed. The display module comprises a bonding layer for bonding a display panel and a lamellar structure; the display panel comprises a first substrate and a second substrate arranged oppositely; the first substrate comprises a first extending part beyond the edge of the second substrate; the second substrate is provided close to the bonding layer; the lamellar structure comprises a second extending part beyond the edge of the second substrate; projections of the second extending part and the first extending part on a plane where the first substrate is located are at least in part overlapped; the bonding layer comprises a support part extending between the first extending part and the second extending part.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: January 5, 2021
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jianguo Zhu, Fangyi Liu, Jie Tang, Jianru Yang, Le Zhang, Yaodong Wang, Jiming Zhang, Xin Wang, Xiaoping Zhang, Yangli Zheng, Xiaobo Xie, Yang Zhang, Binbin Liu
  • Patent number: 10874677
    Abstract: The present application discloses methods for treating an IL-6-mediated disorder such as rheumatoid arthritis (RA), juvenile idiopathic arthritis (JIA), systemic JIA (sJIA), polyarticular course JIA (pcJIA), systemic sclerosis, or giant cell arteritis (GCA), with subcutaneously administered antibody that binds interleukin-6 receptor (anti-IL-6R antibody). In particular, it relates to identification of a fixed dose of anti-IL-6R antibody, e.g. tocilizumab, which is safe and effective for subcutaneous administration in patients with IL-6-mediated disorders. In addition, formulations and devices useful for subcutaneous administration of an anti-IL-6R antibody are disclosed.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: December 29, 2020
    Assignees: Hoffmann-La Roche Inc., CHUGAI SEIYAKU KABUSHIKI KAISHA
    Inventors: Xiaoping Zhang, Kimio Terao
  • Publication number: 20200380196
    Abstract: Taking parameters of a main circuit in a BBMC as optimization objects, and a total harmonic distortion of an output voltage of the BBMC, a deviation between an actual output current and a corresponding rated output current as optimization objectives, a mathematical model between optimization objects and optimization objectives is established. A multi-objective optimization satisfaction function and a multi-objective optimization fitness function are established by selecting a current rating as a rated output current of the BBMC. An adaptive wolf pack optimization algorithm is adopted to obtain a set of optimal parameters of the main circuit. The rated output current is changed to obtain n sets of optimal parameters, and functional relationships between the optimal parameters of the main circuit in the BBMC are obtained using a numerical fitting method. Optimal parameters of the main circuit corresponding to different current ratings are determined according to the functional relationships.
    Type: Application
    Filed: June 23, 2020
    Publication date: December 3, 2020
    Inventors: Xiaoping ZHANG, Ji LIU, Ruirui ZHANG
  • Publication number: 20200368237
    Abstract: Disclosed herein is a method for the prevention, delay of progression or treatment of indolent or aggressive B-cell lymphomas in an individual in need thereof, comprising administering a Btk inhibitor (in particularly (S)-7-(1-actyloylpiperidin-4-yl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo-[1,5-a]pyrimidine-3-carboxamide or a pharmaceutically acceptable salt thereof) in combination with an anti-PD-1 antibody. The potent and selective BTK inhibitor in combination with the anti-PD-1 antibody have a manageable toxicity profile in patients with indolent and aggressive lymphomas.
    Type: Application
    Filed: November 29, 2018
    Publication date: November 26, 2020
    Inventors: James HILGER, Xiaoping ZHANG, Shibao FENG, Sunhee RO, Jane HUANG
  • Patent number: 10823577
    Abstract: A navigation method including obtaining location data of a current location of a terminal, obtaining location data of a destination, where first location data in pre-stored navigation data matches the location data of the current location, and second location data in the pre-stored navigation data matches the location data of the destination, outputting a first navigation instruction when a relationship between the first location data and the second location data is the same as a preset relationship between a current location and a destination, and outputting a second navigation instruction if a relationship between the first location data and the second location data is opposite to a preset relationship between a current location and a destination.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: November 3, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Xiaoping Zhang
  • Patent number: 10823996
    Abstract: A display panel includes a cover plate, an array substrate, and an opposite substrate. The array substrate is disposed between the cover plate and the opposite substrate. An edge of a surface of the array substrate away from the cover plate includes a bonding region for bonding at least one circuit, and a portion of a surface of the array substrate close to the cover plate corresponding to the bonding region is fixedly connected to the cover plate. The opposite substrate is assembled face to face with the array substrate.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: November 3, 2020
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jianguo Zhu, Fangyi Liu, Yangli Zheng, Xiaoping Zhang, Xingpan Sun, Le Zhang, Yaodong Wang, Yang Zhang, Luo Zhang, Jiazhen Liu, Yizhe Li, Hui Yin, Qi Jing
  • Publication number: 20200343843
    Abstract: An actual rotation speed of the asynchronous motor is detected according to the given rotation speed thereof. A given voltage of the asynchronous motor is obtained according to a vector control algorithm and a PI-IP control algorithm and is used as a reference output voltage of the BBMC. A duty cycle of a power switch tube in the BBMC is obtained according to a finite-time control algorithm by taking capacitor voltages and inductor currents in the BBMC as control variables of the speed regulation system. The conducting time of the power switch tube in the BBMC is controlled according to the duty cycle and an output control signal of a corresponding switching cycle, so that an output voltage consistent with its reference output voltage is obtained at an output end of the BBMC, so that the actual rotation speed of the asynchronous motor accurately tracks the given speed.
    Type: Application
    Filed: July 10, 2020
    Publication date: October 29, 2020
    Inventors: Xiaoping Zhang, Ji Liu, Ruirui Zhang
  • Patent number: 10804830
    Abstract: An actual rotation speed of the asynchronous motor is detected according to the given rotation speed thereof. A given voltage of the asynchronous motor is obtained according to a vector control algorithm and a PI-IP control algorithm and is used as a reference output voltage of the BBMC. A duty cycle of a power switch tube in the BBMC is obtained according to a finite-time control algorithm by taking capacitor voltages and inductor currents in the BBMC as control variables of the speed regulation system. The conducting time of the power switch tube in the BBMC is controlled according to the duty cycle and an output control signal of a corresponding switching cycle, so that an output voltage consistent with its reference output voltage is obtained at an output end of the BBMC, so that the actual rotation speed of the asynchronous motor accurately tracks the given speed.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: October 13, 2020
    Assignee: Hunan University of Science and Technology
    Inventors: Xiaoping Zhang, Ji Liu, Ruirui Zhang
  • Patent number: 10803393
    Abstract: A method and system for probability distribution forecast evaluation are disclosed. The present disclosure is directed to embodiments of a system that evaluates probability distribution forecasts by acquiring one or more of a probability distribution forecast, a probability distribution realization, and a prior knowledge of the probability distribution forecast. The system disclosed herein may then compute an accuracy score and an information score based on the acquired forecast, realization, and prior knowledge. In evaluating the forecast, a performance score may also be computed based on the accuracy score and the information score.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: October 13, 2020
    Inventors: Xiaoping Zhang, David Kedmey, Fang Wang
  • Publication number: 20200320234
    Abstract: A mathematical model between the optimization objects and the optimization objectives is established, with finite-time control parameters as optimization objects, and a total harmonic distortion of an output voltage, a deviation signal of a capacitor voltage and a deviation signal of an output current of BBMC as optimization objectives. A multi-objective optimization satisfaction function and a multi-objective optimization fitness function are established. Multiple sets of optimal finite-time control parameters are iteratively optimized using an adaptive wolf pack algorithm. Functional relationships between respective optimal finite-time control parameters and the corresponding actual output current of BBMC are obtained using a numerical fitting method. Optimal control parameters corresponding to any load are obtained according to the obtained functional relationships.
    Type: Application
    Filed: June 23, 2020
    Publication date: October 8, 2020
    Inventors: Xiaoping ZHANG, Ji LIU
  • Patent number: 10714010
    Abstract: Disclosed are a pixel compensation circuit, a method for driving the same, an organic light-emitting diode display panel, and a display device, and the pixel compensation circuit includes: a threshold compensation module, a storage module, a light-emission control module, a driver transistor, and a light-emitting diode, where the threshold compensation module is configured to provide a control electrode of the driver transistor with voltage of a data signal terminal, and threshold compensation voltage in a data writing stage; the storage module is configured to store the voltage of the control electrode of the driver transistor in the data writing stage and a light-emission stage; and the light-emission control module is configured to connect a second electrode of the driver transistor with the light-emitting diode in the light-emission stage to drive the light-emitting diode connected with the driver transistor to emit light.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: July 14, 2020
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Ying Liu, Xin Wang, Xiaoping Zhang
  • Publication number: 20200192894
    Abstract: A system and method for enabling information extraction from large data sets (so-called “big data”) according to a new paradigm is disclosed. This system does not generate functions describing why certain inputs result in certain outputs. Instead, it creates incident mappings of inputs to outputs without regard to why inputs result in outputs. These mappings can be distributions or other data sets representative of different outcomes occurring. This enables several useful operations. For example, by providing a data set indicative of outputs that have historically occurred following a particular input, the disclosed system can be used to predict future outcomes with probabilities. For example, if a particular stock price pattern is provided as an input, the system generates an output data set indicating the probabilities of certain price behaviors following that input pattern. This data set can thus be used to predict future behavior. Other useful operations are disclosed herein.
    Type: Application
    Filed: February 27, 2020
    Publication date: June 18, 2020
    Inventors: Xiaoping Zhang, David Kedmey, Fang Wang