Patents by Inventor Zhiwei Xu

Zhiwei 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).

  • Publication number: 20220004564
    Abstract: Disclosed is a space partitioning method for a database table, including: determining a first data amount within a first time period and a second data amount within a second time period of the database table; calling a target network model, inputting the first data amount and the second data amount into the target network model, and outputting a third data amount within the target time period, wherein the target network model is configured to predict a data amount of a next time period based on data amounts of a previous time period and a current time period; and determining a number of target regions based on the third data amount within the target time period, and partitioning, based on the number of target regions, a space in the database table configured to store the data to be stored.
    Type: Application
    Filed: October 25, 2019
    Publication date: January 6, 2022
    Inventors: Zhiwei XU, Hui WANG, Yongjian HE, Bingjie LI
  • Publication number: 20210384849
    Abstract: A driving circuit for driving a piezoelectric load, can include: a rechargeable power supply; a power stage circuit coupled between the rechargeable power supply and the piezoelectric load; where during a first operation interval of an operation period, the rechargeable power supply charges the piezoelectric load through the power stage circuit, such that a power supply voltage signal provided to the piezoelectric load in the first operation interval corresponds to a reference voltage in a first interval; and where during a second operation interval of the operation period, the piezoelectric load charges the rechargeable power supply through the power stage circuit, such that the power supply voltage signal in the second operation interval corresponds to the reference voltage in a second interval.
    Type: Application
    Filed: June 4, 2021
    Publication date: December 9, 2021
    Inventors: Zhiwei Xu, Chiqing Fang, Chen Zhao
  • Publication number: 20210367132
    Abstract: A driving circuit and a driving method are provided. The driving circuit includes an energy-storage capacitor, a charging circuit and a discharging circuit. The energy-storage capacitor is coupled between a piezoelectric load and the charging circuit. Operation states of the charging circuit and the discharging circuit are controlled, so that the charging circuit charges the energy-storage capacitor during a first operation interval of an operation period, to adjust a power supply voltage signal provided to the piezoelectric load to change with a reference voltage in a first interval, and at least the piezoelectric load discharges electricity through the discharging circuit during a second operation interval of the operation period, to adjust the power supply voltage signal to change with the reference voltage in a second interval. The driving circuit according to the present disclosure requires a few switches, thereby facilitating circuit integration.
    Type: Application
    Filed: May 20, 2021
    Publication date: November 25, 2021
    Inventors: Zhiwei XU, Chiqing FANG, Chen ZHAO
  • Publication number: 20210367133
    Abstract: A driving circuit and a driving method are provided. The driving circuit includes a charging circuit and a discharging circuit. The charging circuit is configured to receive an input voltage to charge the piezoelectric load. The piezoelectric load discharges electricity through the discharging circuit. Operation states of the charging circuit and the discharging circuit are controlled. During a first operation interval of an operation period, the charging circuit charges the piezoelectric load so that a power supply voltage signal provided to the piezoelectric load corresponds to the reference voltage in a first interval. During a second operation interval of the operation period, the piezoelectric load discharges electricity through the discharging circuit so that the power supply voltage signal corresponds to the reference voltage in a second interval. The driving circuit according to the present disclosure requires a few switches, thereby facilitating circuit integration.
    Type: Application
    Filed: May 20, 2021
    Publication date: November 25, 2021
    Inventors: Zhiwei XU, Chiqing FANG, Chen ZHAO
  • Patent number: 11181484
    Abstract: Systems, methods, and apparatuses are disclosed herein for directing, using an optical arrangement including one or more lenses, a main beam and a leading beam toward a specimen such that the main beam is incident on the specimen at a main beam incidence and the leading beam is incident on the specimen at a leading beam incidence. The main beam intensity is greater than a leading beam intensity of the leading beam. A TDI sensor receives electromagnetic radiation from the leading beam incidence, thereby generating a first accumulated charge portion, and receives electromagnetic radiation from the main beam incidence, thereby generating a second accumulated charge portion. A processor maps the first accumulated charge portion to a first FOV, thereby yielding leading beam data, and maps the second accumulated charge portion to a second FOV, thereby yielding main beam data.
    Type: Grant
    Filed: May 25, 2020
    Date of Patent: November 23, 2021
    Assignee: KLA Corporation
    Inventors: Zhiwei Xu, Bret Whiteside, Steve Yifeng Cui, Stephen Biellak
  • Publication number: 20210351687
    Abstract: A method of inductor current reconstruction for a power converter can include: acquiring at least one of a current that represents a current flowing through a main power transistor, and a current that represents a current flowing through a rectifier transistor, in order to generate a switching current sampling signal in the power converter; and generating an inductor current reconstruction signal representing an inductor current in one complete switching cycle according to the switching current sampling signal and an inductor voltage signal representing a voltage across an inductor in the power converter.
    Type: Application
    Filed: May 3, 2021
    Publication date: November 11, 2021
    Inventors: Chiqing Fang, Zhiwei Xu, Kaiwei Yao, Chen Zhao
  • Patent number: 11016024
    Abstract: An inspection system utilizing an air scatter standard includes one or more illumination sources to generate a beam of illumination, illumination optics configured to focus the beam of illumination into a volume of air contained within a chamber of an inspection chamber, one or more collection optics configured to collect a portion of illumination scattered from the volume of air, a detector configured to receive the collected portion of illumination from the one or more collection optics, a controller including one or more processors, communicatively coupled to the detector, configured to execute a set of program instructions to receive one or more signals from the detector and determine a state of the beam of illumination at one or more times based on a comparison between at least one of the intensity or polarization of the illumination scattered from the volume of air and a predetermine air scatter standard.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: May 25, 2021
    Assignee: KLA Corporation
    Inventors: Frank Li, Qing Li, Zhiwei Xu
  • Publication number: 20210010949
    Abstract: Methods and systems for detecting and classifying defects based on the phase of dark field scattering from a sample are described herein. In some embodiments, throughput is increased by detecting and classifying defects with the same optical system. In one aspect, a defect is classified based on the measured relative phase of scattered light collected from at least two spatially distinct locations in the collection pupil. The phase difference, if any, between the light transmitted through any two spatially distinct locations at the pupil plane is determined from the positions of the interference fringes in the imaging plane. The measured phase difference is indicative of the material composition of the measured sample. In another aspect, an inspection system includes a programmable pupil aperture device configured to sample the pupil at different, programmable locations in the collection pupil.
    Type: Application
    Filed: June 26, 2020
    Publication date: January 14, 2021
    Inventors: Zhiwei Xu, Kurt Haller, J.K. Leong, Christian Wolters
  • Publication number: 20210005349
    Abstract: Disclosed is a high-temperature resistant cable for a mobile base station which is related to the technical field of mobile base station accessories. The high-temperature resistant cable for a mobile base station of the present disclosure comprises an inner conductor, a PTFE insulation layer, an outer conductor and a sheath successively, wherein the PTFE insulation layer has at least one hollow channel extending in an extending direction of the inner conductor. The plurality of hollow channels are parallel to and symmetrically distributed around the inner conductor.
    Type: Application
    Filed: September 25, 2017
    Publication date: January 7, 2021
    Inventors: YongJian Chen, ZhaoHong Pan, YongChi Wang, ZhiWei Xu
  • Publication number: 20210002527
    Abstract: Provided is a fireproof glue solution matrix and a preparation method thereof and a fireproof glue solution and a preparation method thereof. The fireproof glue solution matrix comprises silicon dioxide and also comprises a lubricating substance, wherein the lubricating substance is a copolymer of aromatic olefin and/or acrylic ester. The fireproof glue solution comprises the fireproof glue solution matrix. The fireproof glue solution prepared by the present invention has a viscosity of only 50-1000 cp, and is suitable for preparing laminated fireproof glass with a fireproof layer of thickness of less than 1 mm. In addition, the fireproof layer made of the fireproof glue solution has advantages of good fireproof and heat-insulating properties, high in hardness, high transmittance and good ultraviolet resistance performance.
    Type: Application
    Filed: March 8, 2017
    Publication date: January 7, 2021
    Inventors: Yuanchun MU, Dayan DU, Zhiwei XU, Yaohui LI, Lei XU, Jing FU, Jinzhen WANG, Fan ZHANG, Yuan AN
  • Publication number: 20200341615
    Abstract: A method for controlling a window includes at least one operation as follows. A starting operation to start an application (APP) is detected. The APP is started when the starting operation is detected. A function button icon of the APP is displayed in a target window. The target window is a sibling of a desktop icon layer window. When an operation of a user, or an event triggered by the user, on electronic equipment changes a stacking relation between the target window and the desktop icon layer window, a layer of the target window may be reset according to the changed stacking relation, ensuring that the window is always located at a set layer and that the button icon is displayed always at an upper layer of a desktop without blocking or covering another window.
    Type: Application
    Filed: November 17, 2019
    Publication date: October 29, 2020
    Applicant: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventors: Chunxiao JIN, Zhiwei XU
  • Publication number: 20200341616
    Abstract: An application icon control method includes: a set hook program is called to detect operation information for reconfiguring a display state of an application icon; responsive to detecting the operation information, display information of a first layer window is reconfigured according to the operation information, the first layer window is configured to display at least one application icon; and a display state of the first layer window is reconfigured according to the display information.
    Type: Application
    Filed: November 17, 2019
    Publication date: October 29, 2020
    Applicant: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventors: Chunxiao JIN, Zhiwei XU
  • Patent number: 10760192
    Abstract: A washing machine having separate washing arrangements, comprising a housing (1), and, arranged within said housing (1), a first automatic washing system (2) and a second automatic washing system (3). The housing (1) contains a first washing area (4) for accommodating the first automatic washing system (2) and a second washing area (5) for accommodating the second automatic washing system (3), said first washing area (4) and second washing area (5) being arranged one on the left and the other on the right. The vertical plane upon which are located the axis of the first automatic washing system (2) and the axis of the second automatic washing system (3) and the vertical plane of the center line of the top of the present washing machine form an angle.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: September 1, 2020
    Assignee: QINGDAO HAIER WASHING MACHINE CO., LTD.
    Inventors: Peishi Lv, Qingming Zhai, Yingxi Zhu, Zhiwei Xu, Yanjuan Niu
  • Publication number: 20200264099
    Abstract: An inspection system utilizing an air scatter standard includes one or more illumination sources to generate a beam of illumination, illumination optics configured to focus the beam of illumination into a volume of air contained within a chamber of an inspection chamber, one or more collection optics configured to collect a portion of illumination scattered from the volume of air, a detector configured to receive the collected portion of illumination from the one or more collection optics, a controller including one or more processors, communicatively coupled to the detector, configured to execute a set of program instructions to receive one or more signals from the detector and determine a state of the beam of illumination at one or more times based on a comparison between at least one of the intensity or polarization of the illumination scattered from the volume of air and a predetermine air scatter standard.
    Type: Application
    Filed: February 19, 2019
    Publication date: August 20, 2020
    Inventors: Frank Li, Qing Li, Zhiwei Xu
  • Patent number: 10739276
    Abstract: Stray and air scattered light can be reduced by configuring a size of the collection area of a sensor, which reduces a source of sensitivity-limiting noise in the system. By adjusting a size of the collection area, stray deep ultraviolet light and air-scattered deep ultraviolet light can be reduced. A servo can control a position of an illumination spot that is collected by the time delay and integration sensor.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: August 11, 2020
    Assignee: KLA-Tencor Corporation
    Inventors: Donald Pettibone, Daniel Ivanov Kavaldjiev, Chuanyong Huang, Qing Li, Frank Li, Zhiwei Xu
  • Patent number: 10732424
    Abstract: A beam shaper for an optical inspection tool includes a focal lens to focus an optical beam onto a target at an oblique angle of incidence and a phase modulator to substantially flatten a top of the optical beam in the plane of the target when the optical beam is focused onto the target at the oblique angle of incidence.
    Type: Grant
    Filed: January 26, 2019
    Date of Patent: August 4, 2020
    Assignee: KLA Corporation
    Inventors: Zhiwei Xu, Chunsheng Huang, Qing Li
  • Patent number: 10710126
    Abstract: A cleaning apparatus and a cleaning method are provided. The cleaning apparatus is used for removing a residue on a substrate, and includes: a deformable device arranged on the substrate; and an excitation device configured to generate an excitation source for the deformable device, so as to enable the deformable device to be deformed under the effect of the excitation source, thereby to drive the substrate to vibrate and enable the residue to fall off from the substrate.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: July 14, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yangkun Jing, Fei Liu, Zhiwei Xu, Xiaopan Che, Chuanhui Chen
  • Patent number: 10639821
    Abstract: The present disclosure provides a UV curing device, a sealant curing system and a sealant curing method. The UV curing device includes: a light-emitting mechanism configured to emit and guide UV rays in an output direction; and a first adjustment mechanism connected to the light-emitting mechanism and configured to adjust the output direction of the UV rays from the light-emitting mechanism so that the UV rays enter a to-be-cured display panel at an incident angle.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: May 5, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yangkun Jing, Xiaopan Che, Zhiwei Xu, Qin Liu, Aicui Zuo
  • Patent number: 10543498
    Abstract: A sealant coating nozzle and a sealant coating apparatus are provided. The sealant coating nozzle includes a nozzle cavity, a nozzle opening communicated with the nozzle cavity, telescopic inner films located in the nozzle cavity and driving apparatuses configured to drive the telescopic inner films to deform in the nozzle cavity; a volume of the nozzle cavity is reduced by the telescopic inner films in a first deformation state to extrude sealant in the nozzle cavity via the nozzle opening, and the volume of the nozzle cavity is increased by the telescopic inner films in a second deformation state to suck the sealant at the nozzle opening into the nozzle cavity.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: January 28, 2020
    Assignees: BOE Technology Group Co., Ltd., Hefei BOE Optoelectronics Technology Co., Ltd.
    Inventors: Yangkun Jing, Xiaopan Che, Kai Wang, Hui Jiang, Zhiwei Xu
  • Patent number: 10495579
    Abstract: A system includes a beam steering assembly configured to adjust an incident beam to form a corrected beam; a beam monitoring assembly configured to generate monitoring data for the corrected beam including one or more offset parameters of the corrected beam; and a controller configured to store one or more zero parameters of the corrected beam, calculate at least one difference between the one or more zero parameters and the one or more offset parameters of the corrected beam, determine one or more beam position adjustments of the incident beam based on the at least one difference between the one or more zero parameters and the one or more offset parameters of the corrected beam, and direct the beam steering assembly via one or more motor drivers to actuate one or more motors to adjust the incident beam to form the corrected beam.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: December 3, 2019
    Assignee: KLA-Tencor Corporation
    Inventors: Frank Li, Zhiwei Xu, Timothy Swisher, Kwan Auyeung, Yury Yuditsky