Patents by Inventor Jiajun XU

Jiajun 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: 20220193888
    Abstract: A system includes a robotic device, a sensor disposed on the robotic device, and circuitry configured to perform operations. The operations include determining a map that represents stationary features of an environment and receiving, from the sensor, sensor data representing the environment. The operations also include determining, based on the sensor data, a representation of an actor within the environment, where the representation includes keypoints representing corresponding body locations of the actor. The operations also include determining that a portion of a particular stationary feature is positioned within a threshold distance of a particular keypoint and, based on thereon, updating the map to indicate that the portion is to be cleaned. The operations further include, based on the map as updated, causing the robotic device to clean the portion of the particular stationary feature.
    Type: Application
    Filed: July 22, 2021
    Publication date: June 23, 2022
    Inventors: Eden Rephaeli, Guy Satat, Daniel Lam, Benjamin Holson, Jiajun Xu
  • Patent number: 11281500
    Abstract: An apparatus and method are described for intelligent cloud based testing of graphics hardware and software. For example, one embodiment of an apparatus comprises: a hardware pool comprising a plurality of test machines to perform cloud-based graphics validation operations; a virtual resource pool comprising data associated a plurality of different graphics hardware resources; a resource manager to coordinate between the hardware pool and the virtual resource pool to cause one or more virtual machines (VMs) to be executed on one or more of the test machines using resources from the virtual resource pool; and a task dispatcher to dispatch graphics validation tasks to the VMs responsive to user input.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: March 22, 2022
    Assignee: Intel Corporation
    Inventors: Jiajun Xu, Kun Tian, Zhiyuan Lv, Xiaowei Wang
  • Patent number: 11097414
    Abstract: A system includes a robotic device, a sensor disposed on the robotic device, and circuitry configured to perform operations. The operations include determining a map that represents stationary features of an environment and receiving, from the sensor, sensor data representing the environment. The operations also include determining, based on the sensor data, a representation of an actor within the environment, where the representation includes keypoints representing corresponding body locations of the actor. The operations also include determining that a portion of a particular stationary feature is positioned within a threshold distance of a particular keypoint and, based on thereon, updating the map to indicate that the portion is to be cleaned. The operations further include, based on the map as updated, causing the robotic device to clean the portion of the particular stationary feature.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: August 24, 2021
    Assignee: X Development LLC
    Inventors: Eden Rephaeli, Guy Satat, Daniel Lam, Benjamin Holson, Jiajun Xu
  • Patent number: 10976670
    Abstract: An apparatus and a method for detecting an optimal focal plane of a lithographic projection objective lens, the apparatus including: an illumination device, a beam splitting device, a lens array, a mask plate, a reflecting device, a photoelectric detector and a controller. The illumination device generates a collimated beam, which is transmitted through the beam splitting device, focused by the lens array to the mask plate for spatial-filtering, and delivered to the lithographic projection objective lens. The reflecting device reflects a focused beam passing through the lithographic projection objective lens to generate a reflected beam. The photoelectric detector detects an intensity of the reflected beam from the reflecting device after being spatial-filtered via the mask plate and generates a beam intensity signal. The controller controls a movement of a workpiece table and/or collects the beam intensity signal generated by the photoelectric detector.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: April 13, 2021
    Assignee: The Institute of Optics and Electronics, The Chinese Academy of Sciences
    Inventors: Jiajun Xu, Zhixiang Liu, Tingwen Xing, Wumei Lin
  • Patent number: 10859794
    Abstract: The present disclosure provides an automatic focusing device, an automatic focusing electronic eyepiece and an electronic device. The automatic focusing device comprises a sensor drive unit, a master control unit and an interface unit. The master control unit is configured to control the sensor drive unit to enable the automatic focusing device to automatically focus by adjusting an image distance, the interface unit is configured to output image data of the measured target for display.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: December 8, 2020
    Assignee: HANGZHOU SHUNLI OPTOTECH CO., LTD.
    Inventors: Jiajun Xu, Pinqi Lou, Ye Gong
  • Publication number: 20200225588
    Abstract: The present disclosure provides an apparatus and a method for detecting an optimal focal plane of a lithographic projection objective lens, the apparatus comprising: an illumination means, a beam splitting means, a lens array, a mask plate, a reflecting device, a photoelectric detector and a controller. The illumination means may generate a collimated beam, which is transmitted through the beam splitting means, focused by the lens array to the mask plate for spatial-filtering, and then delivered to the lithographic projection objective lens. The reflecting device reflects a focused beam passing through the lithographic projection objective lens to generate a reflected beam. The photoelectric detector detects an intensity of the reflected beam from the reflecting device after being spatial-filtered via the mask plate and generates a beam intensity signal.
    Type: Application
    Filed: December 27, 2019
    Publication date: July 16, 2020
    Inventors: Jiajun XU, Zhixiang LIU, Tingwen XING, Wumei LIN
  • Patent number: 10534164
    Abstract: A digital microscope and a focusing thereof are provided. The microscope integrates a focusing lens unit, a zooming lens unit and related control circuits into the interior of the microscope. The control unit executes a focus searching algorithm and focus tracking algorithm, controls movement of the focusing lens unit and the zooming lens unit and achieves auto-focus by adjusting the image distance and makes the microscope zoom by adjusting the focal length. This improves the focusing efficiency and shortens the focusing time greatly. The microscope can achieve continuous zooming and tracking by the zoom tracking algorithm and the image is kept clear in the zooming process. The microscope adjusts the brightness of the assist light source at the front end of the microscope according to the change of the amount of light transmission by the control unit executing the exposure algorithm to ensure uniform exposure.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: January 14, 2020
    Assignee: HANGZHOU SHUNLI OPTOTECH CO., LTD.
    Inventors: Jiajun Xu, Pinqi Lou, Ye Gong
  • Publication number: 20180373570
    Abstract: An apparatus and method are described for intelligent cloud based testing of graphics hardware and software. For example, one embodiment of an apparatus comprises: a hardware pool comprising a plurality of test machines to perform cloud-based graphics validation operations; a virtual resource pool comprising data associated a plurality of different graphics hardware resources; a resource manager to coordinate between the hardware pool and the virtual resource pool to cause one or more virtual machines (VMs) to be executed on one or more of the test machines using resources from the virtual resource pool; and a task dispatcher to dispatch graphics validation tasks to the VMs responsive to user input.
    Type: Application
    Filed: December 22, 2015
    Publication date: December 27, 2018
    Inventors: Jiajun XU, Kun TIAN, Zhiyuan LV, Xiaowei WANG
  • Publication number: 20180321465
    Abstract: The present disclosure provides an automatic focusing device, an automatic focusing electronic eyepiece and an electronic device. The automatic focusing device comprises a sensor drive unit, a master control unit and an interface unit. The master control unit is configured to control the sensor drive unit to enable the automatic focusing device to automatically focus by adjusting an image distance, the interface unit is configured to output image data of the measured target for display.
    Type: Application
    Filed: May 4, 2018
    Publication date: November 8, 2018
    Applicant: HANGZHOU SHUNLI OPTOTECH CO., LTD.
    Inventors: Jiajun Xu, Pinqi Lou, Ye Gong
  • Publication number: 20170285319
    Abstract: A digital microscope and a focusing thereof are provided. The microscope integrates a focusing lens unit, a zooming lens unit and related control circuits into the interior of the microscope. The control unit executes a focus searching algorithm and focus tracking algorithm, controls movement of the focusing lens unit and the zooming lens unit and achieves auto-focus by adjusting the image distance and makes the microscope zoom by adjusting the focal length. This improves the focusing efficiency and shortens the focusing time greatly. The microscope can achieve continuous zooming and tracking by the zoom tracking algorithm and the image is kept clear in the zooming process. The microscope adjusts the brightness of the assist light source at the front end of the microscope according to the change of the amount of light transmission by the control unit executing the exposure algorithm to ensure uniform exposure.
    Type: Application
    Filed: June 22, 2017
    Publication date: October 5, 2017
    Inventors: Jiajun Xu, Pinqi Lou, Ye Gong
  • Patent number: 9250059
    Abstract: The present disclosure provides detection devices and methods using a diffraction wavefront of a pinhole stitching measurement of surface shape. The light emitted from the laser passes through a filter hole, a first condenser lens, a spatial filter, a beam expander, a half wave plate, a ?/4 wave plate, an attention plate and then is transmitted through a beam splitter, reflected by a reflecting mirror and is irradiated onto an pinhole through a first optical adjustable shelf and a second set of condenser lens. A part of diffraction light generated by the pinhole is irradiated to the mirror to be measured; the light reflected by the mirror to be measured is reflected by a frame of the pinhole and generate a diffraction fringe along with another part of the diffraction wavefront of the pinhole. The interference fringe is focused by the third set of condenser lens on the third optical adjustable shelf and is collected by the CCD detector.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: February 2, 2016
    Assignee: Institute of Optics and Electronics, Chinese Academy of Science
    Inventors: Xin Jia, Jiajun Xu, Fuchao Xu, Weimin Xie, Tingwen Xing
  • Publication number: 20150362308
    Abstract: The present disclosure provides detection devices and methods using a diffraction wavefront of a pinhole stitching measurement of surface shape. The light emitted from the laser passes through a filter hole, a first condenser lens, a spatial filter, a beam expander, a half wave plate, a ?/4 wave plate, an attention plate and then is transmitted through a beam splitter, reflected by a reflecting mirror and is irradiated onto an pinhole through a first optical adjustable shelf and a second set of condenser lens. A part of diffraction light generated by the pinhole is irradiated to the mirror to be measured; the light reflected by the mirror to be measured is reflected by a frame of the pinhole and generate a diffraction fringe along with another part of the diffraction wavefront of the pinhole. The interference fringe is focused by the third set of condenser lens on the third optical adjustable shelf and is collected by the CCD detector.
    Type: Application
    Filed: April 24, 2015
    Publication date: December 17, 2015
    Inventors: Xin JIA, Jiajun XU, Fuchao XU, Weimin XIE, Tingwen XING
  • Patent number: D825591
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: August 14, 2018
    Assignee: ORA INC.
    Inventor: Jiajun Xu