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: 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√óDT11/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
  • Patent number: 10942334
    Abstract: The present disclosure discloses an optical imaging lens assembly. The optical imaging lens assembly includes, 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, a fifth lens, a sixth lens, and a seventh lens. The first lens has a positive refractive power and a convex object-side surface. The second lens has a negative refractive power. The third lens has a positive refractive power. Each of 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, a concave object-side surface and a concave image-side surface. A combined focal length f12 of the first and second lenses and a combined focal length f34 of the third and fourth lenses satisfy: |f12/f34|?0.3.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: March 9, 2021
    Assignee: Zhejiang Sunny Optical Co., Ltd
    Inventors: Biao Xu, Kaiyuan Zhang, Jianke Wenren
  • Publication number: 20210063689
    Abstract: The present disclosure discloses an optical imaging lens group including, sequentially from an object side to an image side along an optical axis, a first lens having positive refractive power with a convex object-side surface; a second lens having refractive power; a third lens having refractive power; a fourth lens having refractive power; a fifth lens having refractive power; and a sixth lens having negative refractive power with a concave object-side surface and a convex image-side surface. A total effective focal length f of the optical imaging lens group, an entrance pupil diameter EPD of the optical imaging lens group and half of a maximal field-of-view Semi-FOV of the optical imaging lens group satisfy: f/EPD<2, and f*tan(Semi-FOV)>4.5 mm.
    Type: Application
    Filed: August 18, 2020
    Publication date: March 4, 2021
    Applicant: Zhejiang Sunny Optical Co., Ltd.
    Inventors: Biao XU, Kaiyuan ZHANG, Xiaofang WANG, Fujian DAI, Liefeng ZHAO
  • Publication number: 20210048638
    Abstract: The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens having positive refractive power; a second lens having negative refractive power; a third lens having refractive power; a fourth lens having refractive power; a fifth lens having refractive power with a convex object-side surface; a sixth lens having positive refractive power with a convex object-side surface a convex image-side surface; and a seventh lens having negative refractive power, wherein a distance TTL along the optical axis from an object-side surface of the first lens to an imaging plane of the optical imaging lens assembly and half of a diagonal length ImgH of an effective pixel area on the imaging plane of the optical imaging lens assembly satisfy ImgH/(TTL/ImgH)>5.0 mm.
    Type: Application
    Filed: August 10, 2020
    Publication date: February 18, 2021
    Applicant: Zhejiang Sunny Optical Co., Ltd
    Inventors: Chen CHEN, Kaiyuan ZHANG, Biao XU, Fujian DAI, Liefeng ZHAO
  • Publication number: 20210005770
    Abstract: This disclosure provides a lighting device, which relates to a field of display technologies. The lighting device of the present disclosure includes: a light emitting panel emitting a predetermined color light; and a solar cell panel disposed on a light-emitting side of the light emitting panel and including an active layer. The active layer has no absorption within a wavelength range of the predetermined color light. The lighting device can ensure to be self-powered under normal light emission when the solar cell panel is disposed on the light-emitting side of the light emitting panel.
    Type: Application
    Filed: February 19, 2020
    Publication date: January 7, 2021
    Inventors: Biao XU, Lin ZHANG
  • Publication number: 20210003829
    Abstract: An optical imaging lens group includes a first lens through a seventh lens sequentially arranged from an object side to an image side along an optical axis. The first lens has positive refractive power, and object-side and image-side surfaces thereof are a convex surface and a concave surface, respectively. The second lens has negative refractive power, and object-side and image-side surfaces of the second lens are a convex surface and a concave surface, respectively. The fourth and fifth lenses both have refractive power. The third and sixth lenses both have positive refractive power. The seventh lens has negative refractive power, and an object-side surface thereof has a concave surface. A distance along the optical axis TTL from the object-side surface of the first lens to an imaging plane and half of a diagonal length ImgH of an effective pixel area on the imaging plane satisfy TTL/ImgH<1.3.
    Type: Application
    Filed: September 24, 2020
    Publication date: January 7, 2021
    Inventors: Fujian DAI, Kaiyuan ZHANG, Biao XU
  • Publication number: 20200409117
    Abstract: The present disclosure discloses an optical imaging lens assembly including a first lens, a second lens, a third lens, a fourth lens, and a fifth lens, which are sequentially arranged from an object side to an image side along an optical axis. The first lens has positive refractive power, and an object-side surface of the first lens is a convex surface. The second lens has refractive power, and an image-side surface of the second lens is a concave surface. The third lens has refractive power. The fourth lens has refractive power. The fifth lens has negative refractive power. A total effective focal length f of the optical imaging lens assembly and a combined focal length f123 of the first lens, the second lens and the third lens satisfy 0.6<f/f123<1.
    Type: Application
    Filed: September 14, 2020
    Publication date: December 31, 2020
    Inventors: Jiaying Zhang, Biao Xu
  • Publication number: 20200400924
    Abstract: The present disclosure discloses a camera 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, a fifth lens, a sixth lens and a seventh lens. The first lens has negative refractive power; the second lens has positive refractive power, and an image-side surface thereof is a concave surface; the third lens has positive refractive power, and an image-side surface thereof is a convex surface; the fourth lens has refractive power; the fifth lens has refractive power; the sixth lens has positive refractive power; and the seventh lens has negative refractive power. And an effective focal length f2 of the second lens and a total effective focal length f of the camera lens assembly satisfy 2<f2/f<4.5.
    Type: Application
    Filed: September 2, 2020
    Publication date: December 24, 2020
    Inventors: Biao XU, Kaiyuan ZHANG
  • Publication number: 20200225451
    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: Application
    Filed: March 27, 2020
    Publication date: July 16, 2020
    Applicant: ZHEJIANG SUNNY OPTICAL co., LTD.
    Inventors: Biao XU, Kaiyuan ZHANG, Lin HUANG
  • Patent number: 10695005
    Abstract: The present invention discloses a non-invasive blood glucose measurement method, applied to noninvasive blood glucose measuring instruments including measuring hosts and fingertip measuring probes, comprising pre-storing a random forest algorithm and a neural network prediction algorithm in the measuring host; measuring energy metabolism parameters of a fingertip of an individual to be measured and transmitting the parameters to the measuring host by the fingertip measuring probe; calling the random forest algorithm to predict the blood glucose type of the energy metabolism parameters of the fingertip of the individual to be measured and calling the corresponding neural network prediction algorithm to calculate the blood glucose value of the fingertip of the individual to be measured by the measuring host. The present invention also provides a fingertip-measuring probe.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: June 30, 2020
    Assignees: Guilin Medicine Electronic Technology Co., Ltd., Guilin University of Electronic Technology
    Inventors: Zhencheng Chen, Jianming Zhu, Yongbo Liang, Shimin Yin, Guocheng Han, Biao Xu, Yang Zhang
  • Publication number: 20200201002
    Abstract: The present disclosure discloses an optical 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, a fifth lens, a sixth lens, a seventh lens and an eighth lens. The first lens has a positive refractive power; the second lens has a negative refractive power; the third lens has a positive or negative refractive power; the fourth lens has a positive refractive power, an object-side surface thereof is a convex surface, and an image-side surface thereof is a convex surface; the fifth lens has a positive or negative refractive power, and an image-side surface thereof is a concave surface; the sixth lens has a positive or negative refractive power; the seventh lens has a positive refractive power; and the eighth lens has a negative refractive power.
    Type: Application
    Filed: January 16, 2020
    Publication date: June 25, 2020
    Inventors: Biao XU, Kaiyuan ZHANG
  • Publication number: 20200150384
    Abstract: The present disclosure discloses an optical 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, a fifth lens and a sixth lens. 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 a concave surface; the second lens has a negative refractive power, and an image-side surface thereof is a concave surface; the third lens has a positive refractive power or a negative refractive power; the fourth lens has a negative refractive power; the fifth lens has a positive refractive power, and an image-side surface thereof is a convex surface; the sixth lens has a negative refractive power, and both of an object-side surface and an image-side surface thereof are concave surfaces.
    Type: Application
    Filed: January 16, 2020
    Publication date: May 14, 2020
    Inventor: Biao XU
  • Publication number: 20200057249
    Abstract: An optical imaging lens assembly from an object side to an image side along an optical axis sequentially includes: a first lens, having a positive refractive power, its object-side surface is convex and its image-side surface is concave; a second lens, having a refractive power, its object-side surface is convex and its image-side surface is concave; a third lens, having a refractive power; a fourth lens, having a refractive power and its object-side surface is concave; a fifth lens, having a positive refractive power, its object-side surface is concave and its image-side surface is convex; and a sixth lens, having a negative refractive power and its object-side surface is concave. A total effective focal length f of the optical imaging lens assembly and a radius of curvature R12 of an image-side surface of the sixth lens satisfy: 0?f/R12?1.5.
    Type: Application
    Filed: September 26, 2018
    Publication date: February 20, 2020
    Inventors: Kaiyuan ZHANG, Biao XU, Bo SONG
  • Publication number: 20190375790
    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: Application
    Filed: April 13, 2017
    Publication date: December 12, 2019
    Inventors: Rui WANG, Quan FANG, Zilong WANG, Biao XU
  • Publication number: 20190243106
    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: Application
    Filed: February 13, 2019
    Publication date: August 8, 2019
    Inventors: Biao Xu, Kaiyuan Zhang, Jianke Wenren
  • Publication number: 20190227998
    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: Application
    Filed: March 28, 2019
    Publication date: July 25, 2019
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Jue Wang, Guwu Yi, Liang Ni, Fan Yang, Biao Xu, Rui Yang
  • Publication number: 20190188041
    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: February 25, 2019
    Publication date: June 20, 2019
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Guwu Yi, Biao Xu, Fan Yang, Jue Wang, Rui Yang
  • Publication number: 20190179122
    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: Application
    Filed: February 13, 2019
    Publication date: June 13, 2019
    Inventors: Kaiyuan Zhang, Ming Li, Biao Xu