Patents by Inventor Liyuan Liu

Liyuan Liu 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: 11934206
    Abstract: Embodiments of the present disclosure provide a gimbal control method. The method includes receiving a first position and a second position wherein the first position and the second position are touched positions of an operation interface of a terminal; determining a rotation angle of the gimbal based on the first position, the second position, and an attitude of the gimbal at the first position; and controlling rotation of the gimbal based on the rotation angle.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: March 19, 2024
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Shuai Liu, Ziyi Pan, Liyuan Liu
  • Patent number: 11817344
    Abstract: The disclosure provides a method for manufacturing shallow trench isolations, providing a substrate comprising a storage cell area and a peripheral area of a storage device; etching the upper part of the substrate of the storage cell area using a first etching process to form a first shallow trench, and filling the first shallow trench with silicon oxide using a first deposition process; and etching the upper part of the substrate of the peripheral area using a second etching process to form a second shallow trench, and filling the second shallow trench with silicon oxide using a second deposition process; wherein the depth and characteristic dimension of the first shallow trench are smaller than the depth and characteristic dimension of the second shallow trench. The disclosure can avoid the silicon dislocation defect of the peripheral area and ensure the device shape and characteristic dimension of the storage cell area.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: November 14, 2023
    Assignee: Shanghai Huali Microelectronics Corporation
    Inventors: Liyuan Liu, Li He, Fulong Qiao, Yi Wang
  • Patent number: 11720119
    Abstract: A path planning method of mobile robots based on image processing is provided and includes: S1, preprocessing a map image: calculating a safety distance between a mobile robot and a surrounding obstacle during a movement of the mobile robot based on external geometric features of the mobile robot, forming a circular range on the map image with a expansion point as a center and the safety distance as an expansion radius to set a safety range, and marking the safety range; performing skeleton feature extraction on the map image after the marking to obtain a reference path map; S2, obtaining an initial path; and S3, optimizing the initial path. The path planning method improves the flexibility of the algorithm and has high robustness and operational efficiency, and the optimal path obtained can ensure the moving safety of the mobile robot.
    Type: Grant
    Filed: September 15, 2022
    Date of Patent: August 8, 2023
    Assignee: JILIN UNIVERSITY
    Inventors: An Cui, Tianmengyu Liang, Liyuan Liu, Yaohui Ma, Yingping Xu, Mengmeng Yang
  • Publication number: 20230236605
    Abstract: A path planning method of mobile robots based on image processing is provided and includes: S1, preprocessing a map image: calculating a safety distance between a mobile robot and a surrounding obstacle during a movement of the mobile robot based on external geometric features of the mobile robot, forming a circular range on the map image with a expansion point as a center and the safety distance as an expansion radius to set a safety range, and marking the safety range; performing skeleton feature extraction on the map image after the marking to obtain a reference path map; S2, obtaining an initial path; and S3, optimizing the initial path. The path planning method improves the flexibility of the algorithm and has high robustness and operational efficiency, and the optimal path obtained can ensure the moving safety of the mobile robot.
    Type: Application
    Filed: September 15, 2022
    Publication date: July 27, 2023
    Inventors: An Cui, Tianmengyu Liang, Liyuan Liu, Yaohui Ma, Yingping Xu, Mengmeng Yang
  • Patent number: 11711963
    Abstract: The present invention provides a mask, a display panel, a method for manufacturing a display panel, and a display device. The display panel has a hollow region and a display region surrounding the hollow region. The display panel includes a plurality of organic light-emitting devices arranged only in the display region. Each of the plurality of organic light-emitting devices includes an anode layer, a cathode layer, a light-emitting layer and a functional layer. The functional layer includes a plurality of uneven portions.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: July 25, 2023
    Assignees: WUHAN TIANMA MICROELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
    Inventors: Liyuan Liu, Zhiyong Xiong, Di Zhu, Yawei Zhong
  • Patent number: 11622327
    Abstract: According to implementations of the subject matter described herein, a new approach for receiving the CBS message is proposed. Generally speaking, upon receipt of CBS messages from a network device in a first receiving time interval of a first DRX period, a terminal device will detect whether there is a change among the CBS messages. On the basis of the detection, the terminal device will determine a configuration of a second DRX period that at least includes a second dormant time interval after the first receiving time interval and a second receiving time interval for receiving further CBS messages. That is, the further CBS messages are received in a second DRX period determined through a self-learning process performed on the received CBS messages and the first DRX period. In this way, the power consumption of the terminal device for receiving the CBS messages can be reduced. As a result, the battery life of the terminal device can be guaranteed.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: April 4, 2023
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Liyuan Liu, Jian Li
  • Patent number: 11508948
    Abstract: The present invention provides a mask, a display panel, a method for manufacturing a display panel, and a display device. The display panel has a hollow region and a display region surrounding the hollow region. The display panel includes a plurality of organic light-emitting devices arranged only in the display region. Each of the plurality of organic light-emitting devices includes an anode layer, a cathode layer, a light-emitting layer and a functional layer. The functional layer includes a plurality of uneven portions.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: November 22, 2022
    Assignees: WUHAN TIANMA MICROELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
    Inventors: Liyuan Liu, Zhiyong Xiong, Di Zhu, Yawei Zhong
  • Publication number: 20220172982
    Abstract: The disclosure provides a method for manufacturing shallow trench isolations, providing a substrate comprising a storage cell area and a peripheral area of a storage device; etching the upper part of the substrate of the storage cell area using a first etching process to form a first shallow trench, and filling the first shallow trench with silicon oxide using a first deposition process; and etching the upper part of the substrate of the peripheral area using a second etching process to form a second shallow trench, and filling the second shallow trench with silicon oxide using a second deposition process; wherein the depth and characteristic dimension of the first shallow trench are smaller than the depth and characteristic dimension of the second shallow trench. The disclosure can avoid the silicon dislocation defect of the peripheral area and ensure the device shape and characteristic dimension of the storage cell area.
    Type: Application
    Filed: October 4, 2021
    Publication date: June 2, 2022
    Applicant: Shanghai Huali Microelectronics Corporation
    Inventors: Liyuan Liu, Li He, Fulong Qiao, Yi Wang
  • Patent number: 11327165
    Abstract: The present invention provides an apparatus and a method for ranging, following and positioning of a mobile device. The apparatus includes an emitting unit, a receiving unit, and a computing unit. The emitting unit and the receiving unit are connected to the computing unit. The emitting unit is configured to emit a centimeter wave to an object to be followed. The receiving unit is configured to receive the centimeter wave. The computing unit is configured to calculate a distance between the mobile device and the object to be followed according to a time difference between emission of the centimeter wave and reception of the centimeter wave, and further calculate a movement distance according to the distance and a threshold distance difference. The present invention can be made waterproof and oil resistant. Compared with the technology using laser, the present invention better prevents measurement failure caused by permeability of the medium.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: May 10, 2022
    Assignee: COWA ROBOTIC CO., LTD.
    Inventors: Qiang Wang, Gangzhi He, Tao He, Wenlong Liao, Jianfei Zhang, Liyuan Liu, Lei Zhao
  • Patent number: 11315455
    Abstract: The present disclosure provides a display panel, including: a display driving circuit; power signal lines connected to the display driving circuit; an external stress detection terminal; and a stress-detection-miss detection circuit, that first access ports of the external stress detection terminal are one-to-one connected to the power signal lines; a second access port of the external stress detection terminal is connected to the stress-detection-miss detection circuit; any one of the power signal lines transmits a power supply voltage during normal display of the display panel, and transmits a first high-voltage detection voltage from the first access ports during a stress image detection of the display panel; and the stress-detection-miss detection circuit includes: a prompt information path formed responding to a second high-voltage detection voltage from the second access port during the stress image detection, to generate prompt information responding to a low-voltage detection voltage from the second a
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: April 26, 2022
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventors: Liyuan Liu, Mengmeng Zhang, Zhengxia Lu
  • Publication number: 20220121775
    Abstract: A system for converting a machine learning algorithm includes: a programmatic interface layer configured to construct a data-flow diagram of an original machine learning algorithm based on a preset data flow generation tool; an operator placement and evaluation module configured to calculate placement costs of each operator in the data-flow diagram when the operator is executed by different participants; a data-flow diagram dividing and scheduling module configured to divide the data-flow diagram into multiple sub-diagrams according to the placement costs, and schedule each of the sub-diagrams to a target participant for execution; and a compilation and execution layer configured to compile the sub-diagrams into a new data-flow diagram based on a greedy algorithm strategy, and generate an instruction for each operator in the new data-flow diagram to obtain a distributed privacy protection machine learning algorithm.
    Type: Application
    Filed: October 3, 2021
    Publication date: April 21, 2022
    Inventors: Shizhen XU, Kunpeng WANG, Xiaofang ZHU, Liyuan LIU, Jiayu TANG, Tian TIAN
  • Patent number: 11221412
    Abstract: The present disclosure provides an eye-safe laser triangulation measurement system, including a laser transmitter, an optical projection apparatus, a laser beam capturing unit, a cooperation unit, and an image processing apparatus. The laser transmitter is configured to generate point pulse laser of a pulse laser beam. The optical projection apparatus is disposed at a front end of the laser transmitter, and is configured to convert the point pulse laser into a line laser. The laser beam capturing unit is configured to capture reflected light obtained by the line laser at a target position to obtain a laser image. The cooperation unit is configured to control on and off of the laser transmitter, and control capture of the laser beam capturing unit. The image processing apparatus is configured to perform 3D modeling on the laser image to obtain a distance to the target position.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: January 11, 2022
    Assignee: ANHUI COWAROBOT CO., LTD.
    Inventors: Qiang Wang, Runxi Zhang, Tao He, Wenlong Liao, Jianfei Zhang, Lei Zhao, Ding Huang, Liyuan Liu
  • Patent number: 11069720
    Abstract: Disclosed are a display panel and a display device, and the display panel includes a display area and a non-display area adjacent to the display area, the display area includes a first display area and a second display area, and the number of pixels in each column of pixels in the first display area is less than that of pixels in any column of pixels in the second display area.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: July 20, 2021
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Baosheng Tao, Zhiyong Xiong, Liyuan Liu
  • Publication number: 20210165387
    Abstract: A gimbal control method includes obtaining a speed of a mouse; and controlling an attitude of a gimbal according to the speed of the mouse.
    Type: Application
    Filed: February 10, 2021
    Publication date: June 3, 2021
    Inventors: Shuai LIU, Liyuan LIU, Bing LI
  • Publication number: 20210147205
    Abstract: A control method of a movable platform includes obtaining current attitude information of a gimbal at the movable platform, determine whether the movable platform is in a tip-over state according to the current attitude information of the gimbal, and when the movable platform is in the tip-over state, switching the gimbal to a protection mode. The gimbal includes a shaft mechanism. The shaft mechanism includes a bracket and a motor. The motor is configured to drive the bracket. The protection mode includes powering off the motor of the gimbal.
    Type: Application
    Filed: December 24, 2020
    Publication date: May 20, 2021
    Inventors: Shuai LIU, Liyuan LIU, Zhendong WANG
  • Publication number: 20210119188
    Abstract: The present invention provides a mask, a display panel, a method for manufacturing a display panel, and a display device. The display panel has a hollow region and a display region surrounding the hollow region. The display panel includes a plurality of organic light-emitting devices arranged only in the display region. Each of the plurality of organic light-emitting devices includes an anode layer, a cathode layer, a light-emitting layer and a functional layer. The functional layer includes a plurality of uneven portions.
    Type: Application
    Filed: December 31, 2020
    Publication date: April 22, 2021
    Inventors: LIYUAN LIU, ZHIYONG XIONG, DI ZHU, YAWEI ZHONG
  • Publication number: 20210119187
    Abstract: The present invention provides a mask, a display panel, a method for manufacturing a display panel, and a display device. The display panel has a hollow region and a display region surrounding the hollow region. The display panel includes a plurality of organic light-emitting devices arranged only in the display region. Each of the plurality of organic light-emitting devices includes an anode layer, a cathode layer, a light-emitting layer and a functional layer. The functional layer includes a plurality of uneven portions.
    Type: Application
    Filed: December 31, 2020
    Publication date: April 22, 2021
    Inventors: LIYUAN LIU, ZHIYONG XIONG, DI ZHU, YAWEI ZHONG
  • Patent number: 10943533
    Abstract: A method for driving a display panel, a driving chip and a display device are provided to ameliorate image retention and improve the display performance. The method includes: monitoring a static pattern in a first display image and defining an area where the static pattern is located as a first area when a display brightness value of the area and a display brightness value of an area where a background pattern thereof is located satisfy a first preset condition; and controlling the static pattern to move during displaying of the first display image, or adjusting grayscale values of sub-pixels in a second area during displaying of a second display image, to which the first display image jumps, the second area being an area, corresponding to the first area in the second display image and having a display brightness value lower than a display brightness value of the first area.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: March 9, 2021
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Liyuan Liu, Zhiyong Xiong, Cuicui Zhang, Xue Wang, Ping An
  • Patent number: 10916737
    Abstract: The present invention provides a mask, a display panel, a method for manufacturing a display panel, and a display device. The display panel has a hollow region and a display region surrounding the hollow region. The display panel includes a plurality of organic light-emitting devices arranged only in the display region. Each of the plurality of organic light-emitting devices includes an anode layer, a cathode layer, a light-emitting layer and a functional layer. The functional layer includes a plurality of uneven portions.
    Type: Grant
    Filed: February 3, 2019
    Date of Patent: February 9, 2021
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Liyuan Liu, Zhiyong Xiong, Di Zhu, Yawei Zhong
  • Publication number: 20200356112
    Abstract: Embodiments of the present disclosure provide a gimbal control method. The method includes receiving a first position and a second position wherein the first position and the second position are touched positions of an operation interface of a terminal; determining a rotation angle of the gimbal based on the first position, the second position, and an attitude of the gimbal at the first position; and controlling rotation of the gimbal based on the rotation angle.
    Type: Application
    Filed: July 30, 2020
    Publication date: November 12, 2020
    Inventors: Shuai LIU, Ziyi PAN, Liyuan LIU