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).
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Patent number: 11934206Abstract: 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: GrantFiled: July 30, 2020Date of Patent: March 19, 2024Assignee: SZ DJI TECHNOLOGY CO., LTD.Inventors: Shuai Liu, Ziyi Pan, Liyuan Liu
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Patent number: 11817344Abstract: 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: GrantFiled: October 4, 2021Date of Patent: November 14, 2023Assignee: Shanghai Huali Microelectronics CorporationInventors: Liyuan Liu, Li He, Fulong Qiao, Yi Wang
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Patent number: 11720119Abstract: 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: GrantFiled: September 15, 2022Date of Patent: August 8, 2023Assignee: JILIN UNIVERSITYInventors: An Cui, Tianmengyu Liang, Liyuan Liu, Yaohui Ma, Yingping Xu, Mengmeng Yang
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Publication number: 20230236605Abstract: 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: ApplicationFiled: September 15, 2022Publication date: July 27, 2023Inventors: An Cui, Tianmengyu Liang, Liyuan Liu, Yaohui Ma, Yingping Xu, Mengmeng Yang
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Patent number: 11711963Abstract: 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: GrantFiled: December 31, 2020Date of Patent: July 25, 2023Assignees: WUHAN TIANMA MICROELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCHInventors: Liyuan Liu, Zhiyong Xiong, Di Zhu, Yawei Zhong
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Patent number: 11622327Abstract: 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: GrantFiled: August 30, 2016Date of Patent: April 4, 2023Assignee: Microsoft Technology Licensing, LLCInventors: Liyuan Liu, Jian Li
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Patent number: 11508948Abstract: 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: GrantFiled: December 31, 2020Date of Patent: November 22, 2022Assignees: WUHAN TIANMA MICROELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCHInventors: Liyuan Liu, Zhiyong Xiong, Di Zhu, Yawei Zhong
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Publication number: 20220172982Abstract: 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: ApplicationFiled: October 4, 2021Publication date: June 2, 2022Applicant: Shanghai Huali Microelectronics CorporationInventors: Liyuan Liu, Li He, Fulong Qiao, Yi Wang
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Patent number: 11327165Abstract: 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: GrantFiled: January 20, 2016Date of Patent: May 10, 2022Assignee: COWA ROBOTIC CO., LTD.Inventors: Qiang Wang, Gangzhi He, Tao He, Wenlong Liao, Jianfei Zhang, Liyuan Liu, Lei Zhao
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Patent number: 11315455Abstract: 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 aType: GrantFiled: May 19, 2021Date of Patent: April 26, 2022Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.Inventors: Liyuan Liu, Mengmeng Zhang, Zhengxia Lu
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Publication number: 20220121775Abstract: 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: ApplicationFiled: October 3, 2021Publication date: April 21, 2022Inventors: Shizhen XU, Kunpeng WANG, Xiaofang ZHU, Liyuan LIU, Jiayu TANG, Tian TIAN
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Patent number: 11221412Abstract: 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: GrantFiled: April 24, 2017Date of Patent: January 11, 2022Assignee: ANHUI COWAROBOT CO., LTD.Inventors: Qiang Wang, Runxi Zhang, Tao He, Wenlong Liao, Jianfei Zhang, Lei Zhao, Ding Huang, Liyuan Liu
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Patent number: 11069720Abstract: 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: GrantFiled: October 31, 2019Date of Patent: July 20, 2021Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Baosheng Tao, Zhiyong Xiong, Liyuan Liu
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Publication number: 20210165387Abstract: 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: ApplicationFiled: February 10, 2021Publication date: June 3, 2021Inventors: Shuai LIU, Liyuan LIU, Bing LI
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Publication number: 20210147205Abstract: 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: ApplicationFiled: December 24, 2020Publication date: May 20, 2021Inventors: Shuai LIU, Liyuan LIU, Zhendong WANG
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Publication number: 20210119188Abstract: 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: ApplicationFiled: December 31, 2020Publication date: April 22, 2021Inventors: LIYUAN LIU, ZHIYONG XIONG, DI ZHU, YAWEI ZHONG
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Publication number: 20210119187Abstract: 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: ApplicationFiled: December 31, 2020Publication date: April 22, 2021Inventors: LIYUAN LIU, ZHIYONG XIONG, DI ZHU, YAWEI ZHONG
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Patent number: 10943533Abstract: 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: GrantFiled: May 23, 2019Date of Patent: March 9, 2021Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Liyuan Liu, Zhiyong Xiong, Cuicui Zhang, Xue Wang, Ping An
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Patent number: 10916737Abstract: 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: GrantFiled: February 3, 2019Date of Patent: February 9, 2021Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Liyuan Liu, Zhiyong Xiong, Di Zhu, Yawei Zhong
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Publication number: 20200356112Abstract: 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: ApplicationFiled: July 30, 2020Publication date: November 12, 2020Inventors: Shuai LIU, Ziyi PAN, Liyuan LIU