Patents by Inventor Biao Xu

Biao Xu 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: 11408852
    Abstract: A sampling tube bundle includes a tube bundle body and a joint assembly. The tube bundle body includes a gas sampling tube for transmitting sampling gas; a metal woven layer wrapping an outer circumference of the gas sampling tube; a heating pad comprising a heat tracing cable wrapping an outer circumference of the metal woven layer, for heating the sampling gas in the gas sampling tube; a flame resistant tape wound around an outer circumference of the of the heating pad; a plurality of signal transmission lines circumferentially spaced apart from one another are arranged outside the flame resistant tape; and a sheath located outside the signal transmission line. The joint assembly is arranged on an end of the tube bundle body, for connecting to an analysis device or a sampling device.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: August 9, 2022
    Assignees: TSINGHUA UNIVERSITY, Nuctech Company Limited, WUHU JIAHONG NEW MATERIAL CO., LTD.
    Inventors: Zhiqiang Chen, Chunan Xu, Qingjun Zhang, Fengfeng Xiong, Yuanjing Li, Ziran Zhao, Yinong Liu, Yaohong Liu, Ge Li, Qiufeng Ma, Biao Cao
  • Publication number: 20220230589
    Abstract: The present application discloses a method, a device, a display device and a medium for improving OLED residual images. The method for improving OLED residual images includes obtaining a life attenuation rate relationship and a life attenuation degree relationship of an OLED display panel, dividing a display area of the display panel into a plurality of sub-areas to monitor temperature change and gray scale change of each sub-area respectively, obtaining a temperature value and a gray scale value of each sub-area at a current moment, calculating a current life attenuation rate according to the temperature value and the gray scale value, and calculating a current luminous time of each sub-area, calculating a life attenuation degree of each sub-area according to the current luminous time of each sub-area, and performing pixel compensation to each sub-area respectively according to the current life attenuation degree of each sub-area.
    Type: Application
    Filed: September 28, 2021
    Publication date: July 21, 2022
    Inventors: Biao XU, Pohsien WU, Shuang ZHAO
  • Publication number: 20220227719
    Abstract: The present invention discloses a diphenylamine-linked chiral bis(oxazoline) ligand without C2-symmetry of formula 3 and its synthesis method and application in an asymmetric catalytic reaction, wherein C2-symmetry is lost by introducing different groups into the diphenylamine backbone to realize precise control of “electronic effect” of the ligand backbone. An anthranilic acid derivative and an orthochlorobenzoic acid derivative are used as starting materials to prepare a compound of formula 1, and then the compound of formula 1 is reacted with a chiral amino alcohol compound to prepare a ?-bishydroxy amide compound of formula 2, and the compound of formula 2 is further subjected to condensation to obtain the diphenylamine-linked chiral bis(oxazoline) ligand without C2-symmetry of formula 3.
    Type: Application
    Filed: April 30, 2020
    Publication date: July 21, 2022
    Inventors: Danqian XU, Yifeng WANG, Biao WANG, Zhenyuan XU
  • Publication number: 20220220677
    Abstract: An installation method of a bent cap for mutually restraining adjacent pier studs in a prefabricated and assembled bridge is provided. A bent cap mold base is configured in a form of a bent cap, which includes fixedly arranging limiting steel rings at two ends of a rectangular frame and vertically arranging steel bar sleeves in the limiting steel rings, hoisting the cap bent mold base on top portions of adjacent two prefabricated pier studs, such that pier stud pre-embedded steel bars protruding from the top portions of the two prefabricated pier studs are correspondingly inserted into the steel bar sleeves at two ends of the bent cap mold base one by one, and limiting the adjacent two prefabricated pier studs in the bent cap mold base.
    Type: Application
    Filed: December 15, 2020
    Publication date: July 14, 2022
    Applicant: CHINA TIESIJU CIVIL ENGINEERING GROUP CO., LTD.
    Inventors: Jiaqing WANG, Dachuang YAO, Lijun JIN, Xinghuo XU, Shisheng FANG, Zhenye ZHU, Tao XU, Hao REN, Jinmiao XU, Biao XING, Shoufeng ZHANG
  • Patent number: 11385439
    Abstract: The present disclosure discloses an imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens and a fifth lens. Here, the first lens has a positive refractive power, and an object-side surface thereof is a convex surface, and an image-side surface thereof is also a convex surface; the second lens has a negative refractive power; the third lens has a positive refractive power, and an object-side surface thereof is a concave surface; the fourth lens has a positive refractive power; the fifth lens has a negative refractive power and an object-side surface thereof is a concave surface and an image-side surface thereof is a concave surface; and the imaging lens assembly satisfies 3?T34/T23 ?7.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: July 12, 2022
    Assignee: ZHEJIANG SUNNY OPTICAL CO., LTD.
    Inventors: Biao Xu, Kaiyuan Zhang, Lin Huang
  • Patent number: 11380114
    Abstract: A method of detecting a target includes generating an image pyramid based on an image on which a detection is to be performed; classifying candidate areas in the image pyramid using a cascade neural network; and determining a target area corresponding to a target included in the image based on the plurality of candidate areas, wherein the cascade neural network includes a plurality of neural networks, and at least one neural network among the neural networks includes parallel sub-neural networks.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: July 5, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Biao Wang, Chao Zhang, Changkyu Choi, Deheng Qian, Jae-Joon Han, Jingtao Xu, Hao Feng
  • Publication number: 20220165517
    Abstract: A key structure includes a keycap, a base plate, a first scissors-type connecting element, a second scissors-type connecting element and a reinforced connecting rod. The first and second scissors-type connecting elements are arranged between the keycap and the base plate. The first scissors-type connecting element includes a first inner frame and a first outer frame. The second scissors-type connecting element includes a second inner frame and a second outer frame. The keycap is movable upwardly or downwardly relative to the base plate along a specified path with the assistance of the first and second scissors-type connecting elements. The reinforced connecting rod includes a hollow rectangular main body. The first outer frame has a first extension structure. The second outer frame has a second extension structure. Moreover, two opposite sides of the hollow rectangular main body are respectively received within the first extension structure and the second extension structure.
    Type: Application
    Filed: February 2, 2021
    Publication date: May 26, 2022
    Inventors: De-Guang Zhu, Rong-Biao Xu
  • Patent number: 11342139
    Abstract: A key structure includes a keycap, a base plate, a first scissors-type connecting element, a second scissors-type connecting element and a reinforced connecting rod. The first and second scissors-type connecting elements are arranged between the keycap and the base plate. The first scissors-type connecting element includes a first inner frame and a first outer frame. The second scissors-type connecting element includes a second inner frame and a second outer frame. The keycap is movable upwardly or downwardly relative to the base plate along a specified path with the assistance of the first and second scissors-type connecting elements. The reinforced connecting rod includes a hollow rectangular main body. The first outer frame has a first extension structure. The second outer frame has a second extension structure. Moreover, two opposite sides of the hollow rectangular main body are respectively received within the first extension structure and the second extension structure.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: May 24, 2022
    Assignee: PRIMAX ELECTRONICS LTD.
    Inventors: De-Guang Zhu, Rong-Biao Xu
  • Publication number: 20220037432
    Abstract: Provided is a pixel defining layer of an organic light-emitting diode display panel. The pixel defining layer includes: an insulating transparent cladding layer; and a reflecting layer in the transparent cladding layer, wherein the reflecting layer is configured to reflect light emitted from a light-emitting layer of the organic light-emitting diode display panel. Organic light-emitting diode display panels and methods for manufacturing an organic light-emitting diode display panel are also provided.
    Type: Application
    Filed: June 5, 2020
    Publication date: February 3, 2022
    Inventors: Biao Xu, Hungchieh Hu, Heng Yang
  • Publication number: 20210365295
    Abstract: The aspects of the present disclosure provide a method and an apparatus for implementing hardware resource allocation. For example, the apparatus includes processing circuitry. The processing circuitry obtains a first value that is indicative of an allocable resource quantity of a hardware resource in a computing device. The processing circuitry also receives a second value that is indicative of a requested resource quantity of the hardware resource by a user, and then determines whether the second value is greater than the first value. When the second value is determined to be less than or equal to the first value, the processing circuitry requests the computing device to allocate the hardware resource of the requested resource quantity to the user, and subtracts the second value from the first value to update the allocable resource quantity of the hardware resource in the computing device.
    Type: Application
    Filed: August 6, 2021
    Publication date: November 25, 2021
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Guwu YI, Biao XU, Fan YANG, Jue WANG, Rui YANG
  • Patent number: 11169362
    Abstract: The present disclosure discloses an optical imaging lens assembly. The lens assembly sequentially includes, along an optical axis from an object side to an image side: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens, each of the first to seventh lenses having refractive powers. The first lens has a negative refractive power, an object-side surface of the first lens is a convex surface, and an image-side surface of the first lens is a concave surface; an image-side surface of the third lens is a concave surface; an object-side surface of the seventh lens is a concave surface; and a total effective focal length f of the optical imaging lens assembly, an effective focal length f4 of the fourth lens, and an effective focal length f5 of the fifth lens satisfy: |f/f4|+|f/f5|<1.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: November 9, 2021
    Assignee: ZHEJIANG SUNNY OPTICAL CO., LTD
    Inventors: Kaiyuan Zhang, Ming Li, Biao Xu
  • Patent number: 11167006
    Abstract: Provided are nine multi-target polypeptides of an opioid and a neuropeptide FF receptor, where an amino acid is replaced on the basis of opioid peptide biphalin- and NPFF-based chimeric peptide BN-9, and acquired are the multi-target polypeptides capable of concurrently activating various opioid and NPFF system receptors.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: November 9, 2021
    Assignee: Shanghai Tianci Life Science Development Co., Ltd.
    Inventors: Rui Wang, Quan Fang, Zilong Wang, Biao Xu
  • Publication number: 20210335989
    Abstract: A display substrate, a method of forming a display substrate and a display device are provided.
    Type: Application
    Filed: November 29, 2019
    Publication date: October 28, 2021
    Inventors: Yongfu DIAO, Chenyu CHEN, Biao XU
  • Patent number: 11132229
    Abstract: The aspects of the present disclosure provide a method and an apparatus for implementing hardware resource allocation. For example, the apparatus includes processing circuitry. The processing circuitry obtains a first value that is indicative of an allocable resource quantity of a hardware resource in a computing device. The processing circuitry also receives a second value that is indicative of a requested resource quantity of the hardware resource by a user, and then determines whether the second value is greater than the first value. When the second value is determined to be less than or equal to the first value, the processing circuitry requests the computing device to allocate the hardware resource of the requested resource quantity to the user, and subtracts the second value from the first value to update the allocable resource quantity of the hardware resource in the computing device.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: September 28, 2021
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Guwu Yi, Biao Xu, Fan Yang, Jue Wang, Rui Yang
  • Publication number: 20210286152
    Abstract: A camera lens assembly, sequentially from an object side to an image side along an optical axis, includes: a first lens having a negative refractive power; a second lens having a positive refractive power, an object-side surface thereof is a convex surface, and an image-side surface thereof is a concave surface; a third lens having a positive refractive power, and an object-side surface thereof is a convex surface; a fourth lens having a negative refractive power, and an image-side surface thereof is a concave surface; a fifth lens having a positive refractive power; and a sixth lens having a negative refractive power, and at least one of an object-side surface and an image-side surface thereof has an inflection point. Half of a maximal field-of-view HFOV of the camera lens assembly satisfies: HFOV?55°.
    Type: Application
    Filed: November 20, 2018
    Publication date: September 16, 2021
    Applicant: Zhejiang Sunny Optical Co., Ltd.
    Inventors: Yuanlin JIA, Kaiyuan ZHANG, Biao XU
  • Patent number: 11112586
    Abstract: An optical imaging lens assembly is provided. The optical imaging lens assembly includes, sequentially along an optical axis from an object side to an image side: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The first lens has a positive refractive power, an object-side surface of the first lens is a convex surface; each of the second lens, the third lens, the fourth lens, and the fifth lens has a positive refractive power or a negative refractive power; the sixth lens has a positive refractive power; the seventh lens has a negative refractive power; an image-side surface of the first lens, an image-side surface of the third lens, and an object-side surface and an image-side surface of the seventh lens are concave surfaces; and TTL and ImgH satisfy: TTL/ImgH?1.4.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: September 7, 2021
    Assignee: ZHEJIANG SUNNY OPTICAL CO., LTD
    Inventors: Biao Xu, Kaiyuan Zhang, Jianke Wenren
  • Publication number: 20210255432
    Abstract: The disclosure discloses a photographic optical system, sequentially includes from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. Wherein the first lens has a positive refractive power, an object-side surface thereof is a convex surface, an image-side surface is a concave surface. The second lens has a negative refractive power, an object-side surface thereof is a convex surface, an image-side surface is a concave surface. The sixth lens has a negative refractive power. TTL is a distance from the object-side surface of the first lens to an imaging surface of the photographic optical system on the optical axis and ImgH is a half the diagonal length of an effective pixel area on the imaging surface of the photographic optical system, and TTL and ImgH satisfy TTL/ImgH<1.5.
    Type: Application
    Filed: July 11, 2019
    Publication date: August 19, 2021
    Inventors: Kaiyuan ZHANG, Biao XU, Lin HUANG
  • Patent number: 11003639
    Abstract: A method of database data migration is described. A migration task of migrating data from a source database to a target database can be obtained. The migration task can include a network type of a source network with which the source database is connected. The target database can be located in a cloud environment. A network connectivity policy is determined according to the network type of the source network of the source database. The network policy can indicate a configuration of a communication link between the source database and the target database. The communication link between the source database and the target database can be configured according to the network connectivity policy, such that the data can be migrated from the source database to the target database via the communication link.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: May 11, 2021
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Jue Wang, Guwu Yi, Liang Ni, Fan Yang, Biao Xu, Rui Yang
  • Publication number: 20210132340
    Abstract: The present disclosure discloses an optical imaging system, sequentially from an object side to an image side of the optical imaging system along an optical axis, including: a first lens having refractive power; a second lens having negative refractive power; a third lens having refractive power; a fourth lens having positive refractive power; a fifth lens having refractive power; a sixth lens having refractive power; and a seventh lens having refractive power, a concave object-side surface, and a concave image-side surface. Half of a diagonal length ImgH of an effective pixel area on an imaging plane of the optical imaging system may satisfy ImgH>6.0 mm. A total effective focal length f of the optical imaging system and an entrance pupil diameter EPD of the optical imaging system may satisfy f/EPD<1.9.
    Type: Application
    Filed: September 30, 2020
    Publication date: May 6, 2021
    Applicant: Zhejiang Sunny Optical Co., Ltd
    Inventors: Xiaofang WANG, Biao XU, Kaiyuan ZHANG, Fujian DAI, Liefeng ZHAO
  • Publication number: 20210109317
    Abstract: An optical imaging system includes an optical lens group including, sequentially along an optical axis from an object side to an image side, a first lens, a second lens, a third lens, and a fourth lens; a lens barrel, the optical lens group is accommodated in the lens barrel; and a plurality of spacers including at least two spacers disposed between the third lens and the fourth lens; the diameter D of the lens barrel at an end towards the object side and a maximum effective radius DT11 of an object-side surface of the first lens satisfy 2×DT11/D?0.5.
    Type: Application
    Filed: September 21, 2020
    Publication date: April 15, 2021
    Inventors: Xiaofang WANG, Guijie ZHU, Biao XU, Qi CHEN, Kaiyuan ZHANG, Fujian DAI, Liefeng ZHAO