Patents by Inventor Zhiwu Li

Zhiwu Li 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: 20230029599
    Abstract: A method and device for controlling wireless charging, an electronic device and a storage medium. The method includes: determining location information of a wireless receiving end; identifying a location relationship between the wireless receiving end and a target; and controlling the wireless transmitting end to suspend energy transmission or to adjust a parameter of energy transmission on basis of the location relationship between the target and the wireless receiving end.
    Type: Application
    Filed: January 26, 2022
    Publication date: February 2, 2023
    Inventors: Chaoxi CHEN, Zhiwu LI
  • Patent number: 11264813
    Abstract: The present disclosure discloses a charging circuit, a terminal and a charging method, and belongs to a field of electronic circuit technologies. The charging circuit includes: a control circuit and a voltage reduction circuit connected to the control circuit; wherein the control circuit is configured to obtain a feedback signal indicating a generation frequency of a control signal, generate the control signal based on the feedback signal, and send the control signal to the voltage reduction circuit; and the voltage reduction circuit is configured to obtain an input voltage and the control signal, perform voltage reduction processing on the input voltage based on the control signal and output an output voltage to a battery, wherein an output current corresponding to the output voltage is greater than an input current corresponding to the input voltage, and the output voltage is configured to determine the generation frequency.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: March 1, 2022
    Assignee: Beijing Xiaomi Mobile Software Co., Ltd.
    Inventors: Jie Fan, Zhiwu Li
  • Patent number: 10643873
    Abstract: A system and method of controlling a cluster tool apparatus, wherein the cluster tool includes one or more processing modules and a robot that is configured to move a semiconductor product to and from the one or more processing modules, the cluster tool configured for processing semiconductor products. The method of controlling the cluster tool apparatus to perform a processing cycle includes receiving a plurality of system parameters from a user interface, wherein the system parameters relate to one or more processing steps of the processing cycle, determining a schedule for performing the processing cycle utilizing the one or more processing modules, wherein the schedule being determined based on a semiconductor product residency parameter.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: May 5, 2020
    Assignee: MACAU UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Naiqi Wu, Fajun Yang, Yan Qiao, Mengchu Zhou, Zhiwu Li
  • Publication number: 20200036199
    Abstract: The present disclosure discloses a charging circuit, a terminal and a charging method, and belongs to a field of electronic circuit technologies. The charging circuit includes: a control circuit and a voltage reduction circuit connected to the control circuit; wherein the control circuit is configured to obtain a feedback signal indicating a generation frequency of a control signal, generate the control signal based on the feedback signal, and send the control signal to the voltage reduction circuit; and the voltage reduction circuit is configured to obtain an input voltage and the control signal, perform voltage reduction processing on the input voltage based on the control signal and output an output voltage to a battery, wherein an output current corresponding to the output voltage is greater than an input current corresponding to the input voltage, and the output voltage is configured to determine the generation frequency.
    Type: Application
    Filed: July 24, 2019
    Publication date: January 30, 2020
    Inventors: Jie FAN, Zhiwu LI
  • Patent number: 10520914
    Abstract: A system and method of controlling a multi cluster tool system configured to process a semiconductor product includes a plurality of cluster tools arranged adjacent each other, a buffer module positioned between a pair of cluster tools, each cluster tool including a plurality of processing modules and a robot, the method of controlling a multi cluster tool system including receiving a plurality of system parameters from a user interface, wherein the system parameters correspond to one or more processing steps in a system cycle, wherein the system cycle is a cycle of processing the semiconductor product, determining a system schedule for defining the system cycle for processing a semiconductor product, the system schedule providing robot waiting times for each robot of each cluster tool, controlling, via a controller, the operation of each robot of each cluster tool based on the determined schedule.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: December 31, 2019
    Assignee: MACAU UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Naiqi Wu, Fajun Yang, Liping Bai, Mengchu Zhou, Zhiwu Li
  • Patent number: 10346214
    Abstract: Given a sequential resource allocation system (RAS) topology structure, a state space, called an impulse state space, corresponding to the impulse response of a linear time-invariant system (LTS), is computed by small enough configuration of the considered RAS. Given an initial resource configuration of a RAS which corresponds to an input of an LTS, a complete state enumeration can be obtained by defining the convolution of this configuration with the pre-computed impulse state space. One example embodiment reduces central processing unit (CPU) time to process instructions that compute a target state space of a RAS includes constructing an initial RAS and an initial state space, and extending the initial state space iteratively under a target resource configuration.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: July 9, 2019
    Assignee: Macau University of Science and Technology
    Inventors: Zhiwu Li, Oussama Karoui, Naiqi Wu, Mohamed Khalgui
  • Publication number: 20190018708
    Abstract: Given a sequential resource allocation system (RAS) topology structure, a state space, called an impulse state space, corresponding to the impulse response of a linear time-invariant system (LTS), is computed by small enough configuration of the considered RAS. Given an initial resource configuration of a RAS which corresponds to an input of an LTS, a complete state enumeration can be obtained by defining the convolution of this configuration with the pre-computed impulse state space. One example embodiment reduces central processing unit (CPU) time to process instructions that compute a target state space of a RAS includes constructing an initial RAS and an initial state space, and extending the initial state space iteratively under a target resource configuration.
    Type: Application
    Filed: July 13, 2017
    Publication date: January 17, 2019
    Inventors: Zhiwu LI, Oussama KAROUI, Naiqi WU, Mohamed KHALGUI
  • Patent number: 10134613
    Abstract: A system and method for a cluster tool apparatus for processing a semiconductor product including processing modules located adjacent each other and configured to process a semiconductor module, loadlocks configured to retain and dispense unprocessed semiconductor products and each positioned adjacent one of the processing modules, a robot configured to load, transfer and unload a semiconductor product to and from the processing modules, a hardware controller in communication with the robot and executing a method to close down the cluster tool apparatus to an idle state, the method including determining a status of the processing modules, determining if a close down process is required based on the status or based on a close down signal, and, if required, determining a schedule for a close down process based on a semiconductor product residency parameter, and controlling the operation of the robot based on the schedule to perform the close down process.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: November 20, 2018
    Assignee: MACAU UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Yan Qiao, Mengchu Zhou, Naiqi Wu, Zhiwu Li, Qinghua Zhu
  • Patent number: 10103569
    Abstract: A power transmission system includes a plurality of electrical substations and a plurality of transmission lines arranged to connect the plurality of electrical substations to form a power transmission network; and a controller system arranged to control a power transmission within the power transmission network. The controller system includes: a detection module arranged to detect an occurrence of a fault in at least one faulty electrical substation of the plurality of electrical substations; and a restoration module arranged to at least temporally maintain an output power of the at least one faulty electrical substation; and wherein at least one of the plurality of electrical substations is operable to facilitate maintaining of the output of the at least one faulty electrical substation upon the detection of the occurrence of the fault.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: October 16, 2018
    Assignee: MACAU UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Zhiwu Li, Zhongyuan Jiang, Naiqi Wu, Mengchu Zhou
  • Publication number: 20180227167
    Abstract: A system for fault detection and recovery of a network includes a network simulation module arranged to receive component data regarding a plurality of components that form the network and simulate the network, a modelling module arranged to utilise the simulated network to model a number of faults in the network to determine the effect of the faults on the network, and a recovery module arranged to determine a solution to the fault on the network.
    Type: Application
    Filed: February 8, 2017
    Publication date: August 9, 2018
    Inventors: Zhiwu Li, Syrine Ben Meskina, Mohamed Khalgui, Narjes Doggaz, Naiqi Wu
  • Patent number: 9957959
    Abstract: For sustainable development, a refinery is required to save energy as much as possible so as to reduce the emission of greenhouse gas. In crude oil operations, oil transportation from storage tanks to charging tanks via a pipeline consumes a large portion of energy. It is vitally important to minimize energy consumption for this process. Since the oil flow resistance is proportional to the square of oil flow rate, the relation between energy efficiency and flow rate is nonlinear, which makes the problem complicated. The present invention addresses this important issue by formulating a linear programming model for the considered problem such that it can be efficiently solved. A real-world industrial case study is used to demonstrate the applications and significance of the proposed method.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: May 1, 2018
    Assignee: Macau University of Science and Technology
    Inventors: Naiqi Wu, Zhiwu Li
  • Patent number: 9927816
    Abstract: A method for operating a follower vehicle in a vehicle platoon includes determining, during operation, whether the follower vehicle is operating in a normal state or an abnormal state based on an operation condition of a component of the follower vehicle, or a communication between the follower vehicle and a preceding vehicle in the vehicle platoon. The method further includes selecting a first control mode if the follower vehicle is in the normal state and a second control mode if the follower vehicle is in the abnormal state so as to control movement of the follower vehicle using the selected control mode. In the first control mode, the follower vehicle uses communication data received from the preceding vehicle in the vehicle platoon to control its movement. In the second control mode, the follower vehicle uses data obtained by one or more of its sensors to control its movement.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: March 27, 2018
    Assignee: Macau University of Science and Technology
    Inventors: Zhiwu Li, Oussama Karoui, Anis Koubaa, Mohamed Khalgui, Emna Guerfala, Eduardo Tovard, Naiqi Wu
  • Publication number: 20180082878
    Abstract: A system and method for a cluster tool apparatus for processing a semiconductor product including processing modules located adjacent each other and configured to process a semiconductor module, loadlocks configured to retain and dispense unprocessed semiconductor products and each positioned adjacent one of the processing modules, a robot configured to load, transfer and unload a semiconductor product to and from the processing modules, a hardware controller in communication with the robot and executing a method to close down the cluster tool apparatus to an idle state, the method including determining a status of the processing modules, determining if a close down process is required based on the status or based on a close down signal, and, if required, determining a schedule for a close down process based on a semiconductor product residency parameter, and controlling the operation of the robot based on the schedule to perform the close down process.
    Type: Application
    Filed: September 22, 2016
    Publication date: March 22, 2018
    Inventors: Yan Qiao, Mengchu Zhou, Naiqi Wu, Zhiwu Li, Qinghua Zhu
  • Publication number: 20180081336
    Abstract: A system and method of controlling a multi cluster tool system configured to process a semiconductor product includes a plurality of cluster tools arranged adjacent each other, a buffer module positioned between a pair of cluster tools, each cluster tool including a plurality of processing modules and a robot, the method of controlling a multi cluster tool system including receiving a plurality of system parameters from a user interface, wherein the system parameters correspond to one or more processing steps in a system cycle, wherein the system cycle is a cycle of processing the semiconductor product, determining a system schedule for defining the system cycle for processing a semiconductor product, the system schedule providing robot waiting times for each robot of each cluster tool, controlling, via a controller, the operation of each robot of each cluster tool based on the determined schedule.
    Type: Application
    Filed: September 19, 2016
    Publication date: March 22, 2018
    Inventors: Naiqi Wu, Fajun Yang, Liping Bai, Mengchu Zhou, Zhiwu Li
  • Publication number: 20180076064
    Abstract: A system and method of controlling a cluster tool apparatus, wherein the cluster tool includes one or more processing modules and a robot that is configured to move a semiconductor product to and from the one or more processing modules, the cluster tool configured for processing semiconductor products. The method of controlling the cluster tool apparatus to perform a processing cycle includes receiving a plurality of system parameters from a user interface, wherein the system parameters relate to one or more processing steps of the processing cycle, determining a schedule for performing the processing cycle utilizing the one or more processing modules, wherein the schedule being determined based on a semiconductor product residency parameter.
    Type: Application
    Filed: September 13, 2016
    Publication date: March 15, 2018
    Inventors: Naiqi Wu, Fajun Yang, Yan Qiao, Mengchu Zhou, Zhiwu Li
  • Publication number: 20170329348
    Abstract: A method for operating a follower vehicle in a vehicle platoon includes determining, during operation, whether the follower vehicle is operating in a normal state or an abnormal state based on an operation condition of a component of the follower vehicle, or a communication between the follower vehicle and a preceding vehicle in the vehicle platoon. The method further includes selecting a first control mode if the follower vehicle is in the normal state and a second control mode if the follower vehicle is in the abnormal state so as to control movement of the follower vehicle using the selected control mode. In the first control mode, the follower vehicle uses communication data received from the preceding vehicle in the vehicle platoon to control its movement. In the second control mode, the follower vehicle uses data obtained by one or more of its sensors to control its movement.
    Type: Application
    Filed: May 13, 2016
    Publication date: November 16, 2017
    Inventors: Zhiwu Li, Oussama Karoui, Anis Koubaa, Mohamed Khalgui, Emna Guerfala, Eduardo Tovard, Naiqi Wu
  • Publication number: 20170279298
    Abstract: A power transmission system includes a plurality of electrical substations and a plurality of transmission lines arranged to connect the plurality of electrical substations to form a power transmission network; and a controller system arranged to control a power transmission within the power transmission network. The controller system includes: a detection module arranged to detect an occurrence of a fault in at least one faulty electrical substation of the plurality of electrical substations; and a restoration module arranged to at least temporally maintain an output power of the at least one faulty electrical substation; and wherein at least one of the plurality of electrical substations is operable to facilitate maintaining of the output of the at least one faulty electrical substation upon the detection of the occurrence of the fault.
    Type: Application
    Filed: March 23, 2016
    Publication date: September 28, 2017
    Inventors: Zhiwu Li, Zhongyuan Jiang, Naiqi Wu, Mengchu Zhou
  • Publication number: 20170131700
    Abstract: A method for implementing a new reactive system and a new reactive system includes applying at least one input suitable for the new reactive system to an existing reactive system to obtain at least one output produced by the existing reactive system; comparing the at least one output with an expected output representative of an output expected to be obtained by applying the at least one input to the new reactive system; determining if the at least one output would be compatible with the expected output; and using the compatibility between the at least one output and the expected output to generate a supervisory control rule set arranged for supervisory control of the existing reactive system when used as part or whole of the new reactive system.
    Type: Application
    Filed: November 16, 2015
    Publication date: May 11, 2017
    Inventors: Zhiwu Li, Lei Feng, Huimin Zhang, Naiqi Wu
  • Publication number: 20170083028
    Abstract: For sustainable development, a refinery is required to save energy as much as possible so as to reduce the emission of greenhouse gas. In crude oil operations, oil transportation from storage tanks to charging tanks via a pipeline consumes a large portion of energy. It is vitally important to minimize energy consumption for this process. Since the oil flow resistance is proportional to the square of oil flow rate, the relation between energy efficiency and flow rate is nonlinear, which makes the problem complicated. The present invention addresses this important issue by formulating a linear programming model for the considered problem such that it can be efficiently solved. A real-world industrial case study is used to demonstrate the applications and significance of the proposed method.
    Type: Application
    Filed: October 21, 2015
    Publication date: March 23, 2017
    Inventors: Naiqi Wu, Zhiwu Li
  • Patent number: 9227318
    Abstract: A method for scheduling single-arm multi-cluster tools is provided. The present invention studies the scheduling problem of a single-arm multi-cluster tool with a linear topology and process-bound bottleneck individual tool. Its objective is to find a one-wafer cyclic schedule such that the lower bound of cycle time is reached by optimally configuring spaces in buffering modules that link individual cluster tools. A Petri net model is developed to describe the dynamic behavior of the system by extending resource-oriented Petri nets such that a schedule can be parameterized by robots' waiting time. Based on this model, conditions are presented under which a one-wafer cyclic schedule with lower bound of cycle time can be found. With the derived conditions, an algorithm is presented to find such a schedule and optimally configure the buffer spaces.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: January 5, 2016
    Assignee: Macau University of Science and Technology
    Inventors: Liping Bai, Naiqi Wu, Zhiwu Li, Mengchu Zhou