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: 20240153101
    Abstract: A method for scene synthesis from human motion is described. The method includes computing three-dimensional (3D) human pose trajectories of human motion in a scene. The method also includes generating contact labels of unseen objects in the scene based on the computing of the 3D human pose trajectories. The method further includes estimating contact points between human body vertices of the 3D human pose trajectories and the contact labels of the unseen objects that are in contact with the human body vertices. The method also includes predicting object placements of the unseen objects in the scene based on the estimated contact points.
    Type: Application
    Filed: October 25, 2023
    Publication date: May 9, 2024
    Applicants: TOYOTA RESEARCH INSTITUTE, INC., THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Sifan YE, Yixing WANG, Jiaman LI, Dennis PARK, C. Karen LIU, Huazhe XU, Jiajun WU
  • Publication number: 20240130276
    Abstract: A riding mowing device includes a seat used for a user to sit on and including a seat cushion and a backrest; a frame for supporting the seat; a cutting assembly including a cutting deck and a mowing element for mowing grass, where the mowing element is at least partially accommodated in the cutting deck, and the cutting assembly is mounted to the frame; a traveling assembly for driving the riding mowing device to travel; a control circuit board for controlling at least the cutting assembly and the traveling assembly; and a power supply assembly for supplying power to at least the cutting assembly and the traveling assembly. At least part of the control circuit board is disposed between the seat and the power supply assembly.
    Type: Application
    Filed: December 11, 2023
    Publication date: April 25, 2024
    Inventors: Li Li, Tianfang Wei, Fan Gao, Liang Chen, Haishen XU, Ming Gao, Min Zhang, Tao Zhang, Jiajun Huang, Yunfei Gao
  • Publication number: 20240121769
    Abstract: This disclosure relates generally to transmitting and receiving signaling for transmission control parameter update in wireless communications. Performed by a wireless terminal in a wireless network, the method including transmitting feedback information to a wireless communication node in the wireless network via a first message, the feedback information being used for adjusting a transmission control parameter for a transmission associated with the wireless terminal, and the transmission comprising at least one of a semi persistent scheduling (SPS) transmission or a configured grant (CG) scheduling transmission.
    Type: Application
    Filed: December 14, 2023
    Publication date: April 11, 2024
    Applicant: ZTE Corporation
    Inventors: Xiaoying MA, Jun XU, Mengzhu CHEN, Yuzhou HU, Hong TANG, Jiajun XU
  • Publication number: 20240121768
    Abstract: This disclosure relates generally to transmission resource or transmission parameters update of various types in wireless communications. Performed by a wireless terminal in a wireless network, the method including receiving a message from a wireless communication node of the wireless network, the message indicating an update to a wireless resource or a transmission parameter associated with the wireless resource, the wireless resource being previously allocated to the wireless terminal for data reception or data transmission; parsing the message based on a type of the update to the wireless resource or the transmission parameter associated with the wireless resource to obtain the update; and transmitting or receiving data, or skipping transmitting or receiving data using the wireless resource based on the update.
    Type: Application
    Filed: June 30, 2023
    Publication date: April 11, 2024
    Applicant: ZTE Corporation
    Inventors: Mengzhu CHEN, Yuzhou Hu, Hong Tang, Jiajun Xu, Qiujin Guo, Xiaoying Ma, Jun Xu
  • Patent number: 11940528
    Abstract: Disclosed are a method and system for evaluating sonar self-noise at a ship design stage. The method includes: building a ship structure full-scale geometric simulation model; acquiring loss factors and sonar transducer space outfitting acoustic absorption coefficient material parameters; acquiring mechanical excitation, hydrodynamic excitation, and propeller excitation; inputting the loss factors and the sonar transducer space outfitting acoustic absorption coefficient material parameters into an established statistical energy evaluation model, and applying a mechanical excitation to a face plate of foundation of the built ship structure full-scale geometric simulation model, applying a hydrodynamic excitation to the surface of a ship hull, and applying a propeller excitation to a stern shaft to perform calculation of sonar self-noise of a ship to obtain total spectral density level of the sonar self-noise; and evaluating spectral density level calculation results by index requirements.
    Type: Grant
    Filed: October 24, 2023
    Date of Patent: March 26, 2024
    Assignee: HARBIN ENGINEERING UNIVERSITY
    Inventors: Haichao Li, Jiawei Xu, Fuzhen Pang, Cong Gao, Yuhang Tang, Jiajun Zheng, Xueren Wang, Zhe Zhao, Xuhong Miao, Yuan Du
  • Publication number: 20240089959
    Abstract: In wireless communication, an improved change of a schedule request (“SR”) resource configuration is provided. The SR resource configuration may be transmitted from a basestation to user equipment (“UE”) and may include a parameter for the configuring of one or more SRs. A validity of the SR resource configuration is determined based on predefined information or high layer signaling.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Applicant: ZTE CORPORATION
    Inventors: Xiaoying MA, Yuzhou HU, Jun XU, Mengzhu CHEN, Jiajun XU, Hong TANG
  • Publication number: 20240089958
    Abstract: In wireless communication, a configuration of uplink (“UL”) signaling transmissions can be through a specific window or pattern. The UL transmission can be concentrated in a time period to save power. Specifically, an active time is determined as a time period for UL signals. Non-active time may include different types of UL signals. The active time may be configured and enabled under different conditions.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Applicant: ZTE CORPORATION
    Inventors: Xiaoying MA, Mengzhu CHEN, Yuzhou XU, Jun XU, Jiajun XU, Hong TANG
  • Publication number: 20240077608
    Abstract: Disclosed are a method and system for evaluating sonar self-noise at a ship design stage. The method includes: building a ship structure full-scale geometric simulation model; acquiring loss factors and sonar transducer space outfitting acoustic absorption coefficient material parameters; acquiring mechanical excitation, hydrodynamic excitation, and propeller excitation; inputting the loss factors and the sonar transducer space outfitting acoustic absorption coefficient material parameters into an established statistical energy evaluation model, and applying a mechanical excitation to a face plate of foundation of the built ship structure full-scale geometric simulation model, applying a hydrodynamic excitation to the surface of a ship hull, and applying a propeller excitation to a stern shaft to perform calculation of sonar self-noise of a ship to obtain total spectral density level of the sonar self-noise; and evaluating spectral density level calculation results by index requirements.
    Type: Application
    Filed: October 24, 2023
    Publication date: March 7, 2024
    Inventors: Haichao LI, Jiawei XU, Fuzhen PANG, Cong GAO, Yuhang TANG, Jiajun ZHENG, Xueren WANG, Zhe ZHAO, Xuhong MIAO, Yuan DU
  • Publication number: 20240078955
    Abstract: An image display method includes: obtaining attribute information of each of sub-pixels in an under-display camera region and in a normal display region; calculating a compensated brightness value of the under-display camera region and an attenuated brightness value of the normal display region according to the attribute information; displaying an image according to the compensated brightness value of the under-display camera region and the attenuated brightness value of the normal display region.
    Type: Application
    Filed: October 18, 2022
    Publication date: March 7, 2024
    Inventors: Yiding XU, Jianhong PAN, Jiajun LI
  • Patent number: 11922850
    Abstract: An image display method includes: obtaining attribute information of each of sub-pixels in an under-display camera region and in a normal display region; calculating a compensated brightness value of the under-display camera region and an attenuated brightness value of the normal display region according to the attribute information; displaying an image according to the compensated brightness value of the under-display camera region and the attenuated brightness value of the normal display region.
    Type: Grant
    Filed: October 18, 2022
    Date of Patent: March 5, 2024
    Assignee: GLENFLY TECH CO., LTD.
    Inventors: Yiding Xu, Jianhong Pan, Jiajun Li
  • Patent number: 11642780
    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: July 22, 2021
    Date of Patent: May 9, 2023
    Assignee: X Development LLC
    Inventors: Eden Rephaeli, Guy Satat, Daniel Lam, Benjamin Holson, Jiajun Xu
  • Publication number: 20220333826
    Abstract: A one-piece, unitarily formed compact geothermal heat exchanger comprises a one-piece body having an external screw-type configuration including a cutting tip and a spiral thread extending from the cutting tip upwards towards the top of the body of the heat exchanger. The top face of the body includes a working fluid inlet and a working fluid outlet, each of which are in communication with an internal continuous helical channel inside of the one-piece body through which the working fluid travels during operation to transfer heat energy between the working fluid and the ground. A compact geothermal heat exchanger having such configuration may be installed by screwing the heat exchanger into the ground to the desired depth, without requiring prior digging or other excavation of the ground surface. The compact geothermal heat exchanger may then be connected to a conventional geothermal heating and cooling system for geothermal heating and/or cooling of a space, such as the interior of a building.
    Type: Application
    Filed: April 8, 2022
    Publication date: October 20, 2022
    Inventors: Jiajun Xu, Takele Gemeda
  • 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