Patents by Inventor Xiaoyi Liu

Xiaoyi 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).

  • Publication number: 20250079837
    Abstract: A model prediction-based control method for grid forming of multi-port autonomous reconfigurable solar plants includes: estimating and predicting system parameters by establishing a multi-port autonomous reconfigurable solar plant and a dynamic model of a synchronous generator model; converting an objective function into an unconstrained optimization problem, using Newton's method to achieve minimum computational burden within each calculation time step to find a solution in real time for obtaining an optimal angular frequency; based on results of the optimal angular frequency, updating an output voltage and a dq-axis current of the multi-port autonomous reconfigurable solar plant, and changing an arm modulation index of the plant, thereby realizing the plant's inertia and primary frequency modulation support. The model prediction-based control method provided by the present invention achieves rapid prediction during operation and improves frequency response, rapidity and system stability.
    Type: Application
    Filed: November 6, 2023
    Publication date: March 6, 2025
    Inventors: Kenan CAO, Lei CUI, Jiebei ZHU, Chenhui NIU, Feng LI, Jie ZHU, Jiahao SHI, Dan WEI, Ke ZHANG, Xiaoyu ZHOU, Jiaping QIAN, Xueke ZHU, Xiaoyi LIU
  • Patent number: 12103542
    Abstract: The disclosure relates to running simulations in order to test software used to control a vehicle in an autonomous driving mode. For instance, logged data may be identified for a simulation. The logged data may have been collected by a first vehicle and may identifying an agent that is a road user. The logged data may be analyzed to identify one or more signals of intent of the agent including a logged path of the agent. One or more characteristics may be identified based on the one or more signals. The simulation may be run using the logged data by replacing the agent with an interactive agent having the one or more characteristics. The interactive agent may be capable of responding to actions performed by a simulated vehicle in the simulation using software for controlling a vehicle in an autonomous driving mode.
    Type: Grant
    Filed: August 8, 2023
    Date of Patent: October 1, 2024
    Assignee: Waymo LLC
    Inventors: Menghui Wang, Aleksandar Gabrovski, Xiaoyi Liu, Wesley Heung, Yang-Hua Chu
  • Publication number: 20240303288
    Abstract: Methods, systems, and storage media for determining the similarities of post content for mapping into a hyperspace. In an exemplary method, the disclosure comprises receiving a query at the processor. The method includes determining post data associated with the query. The post data comprises a plurality of posts provided to a social media platform by various users of the platform. The method includes determining, by the processor, a relationship between at least two posts of the plurality of posts. The method includes training, by the processor, a machine language model. The machine language model is based on the query and the relationship between the at least two posts. The method also generates a hyperspace based on the relationship between the at least two posts and the query.
    Type: Application
    Filed: December 5, 2022
    Publication date: September 12, 2024
    Inventors: Jun Mei, Siddarth Reddy Malreddy, Piyush Maheshwari, Yiqun Liu, Kaushik Rangadurai, Anthony Robert Bell, Fedor Borisyuk, Xiaoyi Liu
  • Patent number: 12085935
    Abstract: Aspects of the disclosure relate to generating assets for a simulation in order to test autonomous vehicle control software. For instance, data identifying a vehicle object, a polygon for the vehicle object, and a polygon for an open-door object associated with the vehicle object may be received. A rectangle may be fit to the polygon for the vehicle object. A polygon for the vehicle object without the open-door object may be determined based on the rectangle. A vehicle asset representing a vehicle may be adjusted based on the polygon for the vehicle object without the open-door object. A position and rotation of the rectangle may be used to position an open-door asset representing an open door for the simulation. The open-door asset is adjusted based on the adjustment to the vehicle asset. The simulation may be run with the positioned and adjusted open door asset in order to test the autonomous vehicle control software.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: September 10, 2024
    Assignee: Waymo LLC
    Inventors: Evan Birenbaum, Xiaoyi Liu
  • Publication number: 20230382400
    Abstract: The disclosure relates to running simulations in order to test software used to control a vehicle in an autonomous driving mode. For instance, logged data may be identified for a simulation. The logged data may have been collected by a first vehicle and may identifying an agent that is a road user. The logged data may be analyzed to identify one or more signals of intent of the agent including a logged path of the agent. One or more characteristics may be identified based on the one or more signals. The simulation may be run using the logged data by replacing the agent with an interactive agent having the one or more characteristics. The interactive agent may be capable of responding to actions performed by a simulated vehicle in the simulation using software for controlling a vehicle in an autonomous driving mode.
    Type: Application
    Filed: August 8, 2023
    Publication date: November 30, 2023
    Inventors: Menghui Wang, Aleksandar Gabrovski, Xiaoyi Liu, Wesley Heung, Yang-Hua Chu
  • Publication number: 20230356733
    Abstract: A method includes receiving a set of real-world log data defining a real-world driving environment and generated by an autonomous vehicle (AV). The set of real-world log data includes at least one set of real-world parameters defining at least one real-world object observed by the AV operating within the real-world driving environment. The method further includes generating, based on the set of real-world log data, a set of simulated log data defining a simulated driving environment and causing a simulation to be performed using the set of simulated log data. The set of simulated log data comprises at least one set of simulated parameters defining at least one simulated object within the simulated driving environment, and generating the set of simulated log data includes perturbing at least one real-world parameter of the at least one set of real-world parameters to obtain the at least one set of simulated parameters.
    Type: Application
    Filed: May 6, 2022
    Publication date: November 9, 2023
    Inventors: Matthew Lau, Jiabin Liu, Xiaoyi Liu
  • Patent number: 11790131
    Abstract: The disclosure relates to testing software for operating an autonomous vehicle. In one instance, a simulation may be run using log data collected by a vehicle operating in an autonomous driving mode. The simulation may be run using the software to control a simulated vehicle and by modifying a characteristic of an agent identified in the log data. During the running of the simulation, that a first type of interaction between the first simulated vehicle and the modified agent will occur may be determined. In response to determining that the particular type of interaction will occur, the modified agent may be replaced by a interactive agent that simulates a road user corresponding to the modified agent that is capable of responding to actions performed by simulated vehicles. That the particular type of interaction between the simulated vehicle and the interactive agent has occurred in the simulation may be determined.
    Type: Grant
    Filed: September 19, 2022
    Date of Patent: October 17, 2023
    Assignee: Waymo LLC
    Inventors: Xiaoyi Liu, Menghui Wang, Yang-hua Chu, Aleksandar Gabrovski
  • Patent number: 11760361
    Abstract: The disclosure relates to running simulations in order to test software used to control a vehicle in an autonomous driving mode. For instance, logged data may be identified for a simulation. The logged data may have been collected by a first vehicle and may identifying an agent that is a road user. The logged data may be analyzed to identify one or more signals of intent of the agent including a logged path of the agent. One or more characteristics may be identified based on the one or more signals. The simulation may be run using the logged data by replacing the agent with an interactive agent having the one or more characteristics. The interactive agent may be capable of responding to actions performed by a simulated vehicle in the simulation using software for controlling a vehicle in an autonomous driving mode.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: September 19, 2023
    Assignee: Waymo LLC
    Inventors: Menghui Wang, Aleksandar Gabrovski, Xiaoyi Liu, Wesley Heung, Yang-Hua Chu
  • Publication number: 20230071259
    Abstract: The disclosure relates to testing software for operating an autonomous vehicle. In one instance, a simulation may be run using log data collected by a vehicle operating in an autonomous driving mode. The simulation may be run using the software to control a simulated vehicle and by modifying a characteristic of an agent identified in the log data. During the running of the simulation, that a first type of interaction between the first simulated vehicle and the modified agent will occur may be determined. In response to determining that the particular type of interaction will occur, the modified agent may be replaced by a interactive agent that simulates a road user corresponding to the modified agent that is capable of responding to actions performed by simulated vehicles. That the particular type of interaction between the simulated vehicle and the interactive agent has occurred in the simulation may be determined.
    Type: Application
    Filed: September 19, 2022
    Publication date: March 9, 2023
    Inventors: Xiaoyi Liu, Menghui Wang, Yang-hua Chu, Aleksandar Gabrovski
  • Publication number: 20230031130
    Abstract: Aspects of the disclosure relate to generating assets for a simulation in order to test autonomous vehicle control software. For instance, data identifying a vehicle object, a polygon for the vehicle object, and a polygon for an open-door object associated with the vehicle object may be received. A rectangle may be fit to the polygon for the vehicle object. A polygon for the vehicle object without the open-door object may be determined based on the rectangle. A vehicle asset representing a vehicle may be adjusted based on the polygon for the vehicle object without the open-door object. A position and rotation of the rectangle may be used to position an open-door asset representing an open door for the simulation. The open-door asset is adjusted based on the adjustment to the vehicle asset. The simulation may be run with the positioned and adjusted open door asset in order to test the autonomous vehicle control software.
    Type: Application
    Filed: July 30, 2021
    Publication date: February 2, 2023
    Applicant: WAYMO LLC
    Inventors: Evan Birenbaum, Xiaoyi Liu
  • Patent number: 11494533
    Abstract: The disclosure relates to testing software for operating an autonomous vehicle. In one instance, a simulation may be run using log data collected by a vehicle operating in an autonomous driving mode. The simulation may be run using the software to control a simulated vehicle and by modifying a characteristic of an agent identified in the log data. During the running of the simulation, that a first type of interaction between the first simulated vehicle and the modified agent will occur may be determined. In response to determining that the particular type of interaction will occur, the modified agent may be replaced by a interactive agent that simulates a road user corresponding to the modified agent that is capable of responding to actions performed by simulated vehicles. That the particular type of interaction between the simulated vehicle and the interactive agent has occurred in the simulation may be determined.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: November 8, 2022
    Assignee: Waymo LLC
    Inventors: Xiaoyi Liu, Menghui Wang, Yang-hua Chu, Aleksandar Gabrovski
  • Publication number: 20220209002
    Abstract: The present invention discloses a high-linearity GaN-based millimeter wave device and preparation method thereof.
    Type: Application
    Filed: March 16, 2022
    Publication date: June 30, 2022
    Applicants: ZHONGSHAN INSTITUTE OF MODERN INDUSTRIAL TECHNOLOGY, SOUTH CHINA UNIVERSITY OF TECHNOLOGY, SOUTH CHINA UNIVERSITY OF TECHNOLOGY
    Inventors: Hong WANG, Xiaoyi LIU, Jingxiong CHEN
  • Publication number: 20210390225
    Abstract: Aspects of the disclosure relate to improving realism in simulations for testing software for operating a vehicle in an autonomous driving mode. In one instance, an initial observation of a road user object may be identified in a log data segment captured by a perception system of a vehicle. The perception system having one or more sensors. The initial observation includes a point in time and an initial location of the road user object. A distance traveled by the road user object from a start of the log data segment to the point in time may be determined. A starting location for the road user object may be determined using the distance traveled. A trajectory for the road user object may be determined between the starting location and the initial location of the road user object. The trajectory may be appended to the log data segment.
    Type: Application
    Filed: June 10, 2020
    Publication date: December 16, 2021
    Inventors: Han Yu, Yang-hua Chu, Xiaoyi Liu
  • Publication number: 20210387628
    Abstract: The disclosure relates to running simulations in order to test software used to control a vehicle in an autonomous driving mode. For instance, logged data may be identified for a simulation. The logged data may have been collected by a first vehicle and may identifying an agent that is a road user. The logged data may be analyzed to identify one or more signals of intent of the agent including a logged path of the agent. One or more characteristics may be identified based on the one or more signals. The simulation may be run using the logged data by replacing the agent with an interactive agent having the one or more characteristics. The interactive agent may be capable of responding to actions performed by a simulated vehicle in the simulation using software for controlling a vehicle in an autonomous driving mode.
    Type: Application
    Filed: June 11, 2020
    Publication date: December 16, 2021
    Inventors: Menghui Wang, Aleksandar Gabrovski, Xiaoyi Liu, Wesley Heung, Yang-Hua Chu
  • Publication number: 20210157882
    Abstract: The disclosure relates to testing software for operating an autonomous vehicle. In one instance, a simulation may be run using log data collected by a vehicle operating in an autonomous driving mode. The simulation may be run using the software to control a simulated vehicle and by modifying a characteristic of an agent identified in the log data. During the running of the simulation, that a first type of interaction between the first simulated vehicle and the modified agent will occur may be determined. In response to determining that the particular type of interaction will occur, the modified agent may be replaced by a interactive agent that simulates a road user corresponding to the modified agent that is capable of responding to actions performed by simulated vehicles. That the particular type of interaction between the simulated vehicle and the interactive agent has occurred in the simulation may be determined.
    Type: Application
    Filed: November 27, 2019
    Publication date: May 27, 2021
    Inventors: Xiaoyi Liu, Menghui Wang, Yang-hua Chu, Aleksandar Gabrovski
  • Patent number: 10335661
    Abstract: A breaststroke leg strength training device, including a lower panel, and a prostrate platform connected with the panel through an elastic band and located below one side of the panel; a slit consistent with a breaststroke leg movement trajectory is formed in the panel, and an elastic band attachment column is respectively arranged at positions on both sides of the slit and on the panel; two foot pedal middle shafts are arranged in the slit and extend to the lower side of the panel; and the elastic band is connected with the attachment columns through a fixed beam fixed to the platform and the two foot pedal middle shafts. The device has a smart structural design, a trainer can comprehensively train all the muscle groups involved in the breaststroke leg actions in a continuous and efficient manner, and the breaststroke leg actions of the trainer can be specified and corrected.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: July 2, 2019
    Assignee: SHANDONG NORMAL UNIVERSITY
    Inventors: Xiaoyi Liu, Qingguo Lin
  • Patent number: 10143003
    Abstract: A method, station (STA), and access point (AP) for transmitting in a WLAN. A station includes a controller and a transceiver, the transceiver configured to receive, from an AP, a channel sounding sequence including a null data packet announcement frame (NDPA) including information indicating STAs to transmit a feedback report, a null data packet (NDP) containing pilots to compute the feedback report and a trigger frame (TF) to trigger transmission of the feedback report. An AP includes a controller and a transceiver, the controller configured to generate a NDPA including information indicating STAs to transmit a feedback report, a NDP containing pilots to compute the feedback report, and a TF to trigger transmission of the feedback report from at least one of the STAs, and the transceiver is operably connected to the controller and configured to transmit a channel sounding sequence that includes the NDPA, the NDP, and the TF.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: November 27, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kaushik M. Josiam, Rakesh Taori, Xiaoyi Liu
  • Publication number: 20180161655
    Abstract: A breaststroke leg strength training device, including a lower panel, and a prostrate platform connected with the panel through an elastic band and located below one side of the panel; a slit consistent with a breaststroke leg movement trajectory is formed in the panel, and an elastic band attachment column is respectively arranged at positions on both sides of the slit and on the panel; two foot pedal middle shafts are arranged in the slit and extend to the lower side of the panel; and the elastic band is connected with the attachment columns through a fixed beam fixed to the platform and the two foot pedal middle shafts. The device has a smart structural design, a trainer can comprehensively train all the muscle groups involved in the breaststroke leg actions in a continuous and efficient manner, and the breaststroke leg actions of the trainer can be specified and corrected.
    Type: Application
    Filed: September 9, 2016
    Publication date: June 14, 2018
    Applicant: SHANDONG NORMAL UNIVERSITY
    Inventors: Xiaoyi LIU, Qingguo LIN
  • Publication number: 20170111924
    Abstract: A method, station (STA), and access point (AP) for transmitting in a WLAN. A station includes a controller and a transceiver, the transceiver configured to receive, from an AP, a channel sounding sequence including a null data packet announcement frame (NDPA) including information indicating STAs to transmit a feedback report, a null data packet (NDP) containing pilots to compute the feedback report and a trigger frame (TF) to trigger transmission of the feedback report. An AP includes a controller and a transceiver, the controller configured to generate a NDPA including information indicating STAs to transmit a feedback report, a NDP containing pilots to compute the feedback report, and a TF to trigger transmission of the feedback report from at least one of the STAs, and the transceiver is operably connected to the controller and configured to transmit a channel sounding sequence that includes the NDPA, the NDP, and the TF.
    Type: Application
    Filed: October 13, 2016
    Publication date: April 20, 2017
    Inventors: Kaushik M. Josiam, Rakesh Taori, Xiaoyi Liu
  • Patent number: 9241876
    Abstract: The preparation method includes the following steps: dissolving aripiprazole in an acidic solution having an acidifier so as to obtain a medicament having acidic solution; then, performing a wet granulation on or preparing a suspension with the obtained medicament having acidic solution, an alkalizer, and an excipient so as to obtain the aripiprazole medicament formulation; the excipient comprising an antioxidant. The aripiprazole medicament formulation obtained through the preparation method has a significantly reduced amount of related substances, great solubility, great stability, high bioavailability, reduced individual differences, and enhanced wettability and content uniformity of insoluble medicaments.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: January 26, 2016
    Assignee: SHANGHAI ZHONGXI PHARMACEUTICAL CORPORATION
    Inventors: Siji Zheng, Xiaoyi Liu, Linyong Fu, Bo Tan, Min Zhou