Patents by Inventor Feng Xu

Feng 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: 20240364116
    Abstract: The present disclosure pertains to the field of power electronics technologies, and provides a grid-connected control method and system for a grid-forming converter without a grid-side voltage sensor. The grid-connected control method includes: performing coordinate transformation on a phase of a three-phase capacitor voltage sampled by a phase-locked loop (PLL) to obtain a first phase; in response to control of a first pulse width modulation (PWM) pulse signal, introducing a reference phase, and performing negative feedback regulation on a difference between the reference phase and the first phase to obtain a second phase; and in response to control of a second PWM pulse signal, performing a modulo operation on a difference between the reference phase and the second phase to obtain a third phase, where the third phase is used to replace a phase of the PLL to perform coordinate transformation of a system.
    Type: Application
    Filed: March 28, 2024
    Publication date: October 31, 2024
    Applicant: Shandong University
    Inventors: Jingyang FANG, Wenrui LI, Wenjia SI, Tao XU, Feng GAO
  • Patent number: 12132304
    Abstract: An over-energy protection circuit, a residual current device, an electronic device, and a power distribution box. The protection circuit has relatively high operating reliability, and includes: a first over-energy absorption circuit, a second over-energy absorption circuit, and a residual current determining circuit. The first over-energy absorption circuit receives a first electrical signal output from a current transformer; and when a voltage value of the first electrical signal is greater than or equal to a first preset threshold, performs step-down processing on the first electrical signal to obtain a second electrical signal, and outputs the second electrical signal to the second over-energy absorption circuit; or when a voltage value of the first electrical signal is less than a first preset threshold, outputs the first electrical signal to the second over-energy absorption circuit.
    Type: Grant
    Filed: July 6, 2022
    Date of Patent: October 29, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Qingying Liu, Kui Li, Feng Niu, Zijian Xu, Chenyu Xie
  • Patent number: 12129603
    Abstract: A ground rail transfer device includes: a support rail provided on the ground and used for unloading a vertical load of a bogie in a rail vehicle; a guide rail provided on the ground and used for driving the bogie to perform a rail transfer operation; and a transition plate provided on the ground and located between a first rail and a second rail which are different in a gauge; wherein a difference between the top surface height of the transition plate and the top surface height of the first rail is equal to a distance between a wheel rim vertex circle and a wheel tread of the rail vehicle.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: October 29, 2024
    Assignee: CRRC TANGSHAN CO., LTD.
    Inventors: Xiaojun Zhang, Jianke Zheng, Lijun Zhang, Hongjiang Xu, Xiuyu Sun, Feng Zhao, Yongjiang Ma, Xueyi Song, Guangsheng Zheng, Taoguang Hao, Wei Wang
  • Publication number: 20240356300
    Abstract: A method of making an optical device. The method comprises providing a semiconductor wafer, providing an array of emitters located on a first side of the wafer and providing one or more optical components on a second, opposite side of the wafer, wherein the or each optical component is arranged to split light from an associated emitter of the array of emitters. The method further comprises emitting light with the associated emitter, receiving light emitted by the associated emitter and transmitted through the optical component on the second side of the wafer, and determining an alignment between the one or more optical components and the array of emitters from the received light.
    Type: Application
    Filed: July 19, 2022
    Publication date: October 24, 2024
    Inventors: Baiming GUO, Qing WANG, Wei Ting CHEN, Feng ZHAO, Alexander MIGLO, Jichi MA, Guoyang XU
  • Publication number: 20240353640
    Abstract: The present application provides an all-dry optical fiber ribbon cable, including an optical unit, a first buffer layer, a first waterproof layer, a loose tube, a second waterproof layer, an armor layer, and a protective layer; where the optical unit includes a plurality of fiber ribbons; the first buffer layer, the first waterproof layer, the loose tube, the second waterproof layer, the armor layer, and the protective layer are sequentially sleeved over the plurality of fiber ribbons. The first buffer layer is a high elastic polymer material layer, and a Shore hardness of the first buffer layer is 45HA-85HA, a tensile strength of the first buffer layer is greater than or equal to 10 MPA, a breaking elongation of first buffer layer is 200%-600%, and a compression permanent deformation rate of the first buffer layer is less than or equal to 30%.
    Type: Application
    Filed: June 26, 2024
    Publication date: October 24, 2024
    Applicant: Jiangsu Zhongtian Technology Co., Ltd.
    Inventors: Jing ZHAO, Jianqiu XU, Pengyu ZHU, Weiwei MIAO, Xiaoming MIAO, Huihui QIAN, Feng TAN, Xiaohua MIAO
  • Publication number: 20240357612
    Abstract: Provided are a network slice control information sending method and apparatus, a network slice control information receiving and processing method and apparatus, a communication node, and a computer-readable storage medium. The network slice control information sending method includes that a first communication node generates downlink control information for indicating network slice information; and the first communication node sends the downlink control information to a second communication node.
    Type: Application
    Filed: April 15, 2022
    Publication date: October 24, 2024
    Inventors: Wanfu XU, Feng XIE, Jie LI
  • Publication number: 20240345755
    Abstract: Methods, systems, and devices for dynamically adjusting data read size are described. A memory system controller may be configured to dynamically adjust a size of data transmitted to a host system based on determining a quantity of data requested by the host system. The memory system controller may support receiving a read command of a first data size, incrementing a counter by the first data size, requesting the data from a memory device according to a second data size, and transmitting the data from the memory device according to a third data size based on the counter. The memory system controller may determine the counter does not satisfy a threshold and configure the third data size as a relatively small quantity of data. However, the memory system controller may determine the counter satisfies the threshold and configure the third data size as a relatively large quantity of data.
    Type: Application
    Filed: April 9, 2024
    Publication date: October 17, 2024
    Inventors: Wenjun Wu, Feng Xu
  • Publication number: 20240348324
    Abstract: In an outbound transmission control method, a satellite network device segments an application layer packet into a plurality of Message Data Convergence Protocol (MDCP) protocol data units (PDUs) at an MDCP layer. The satellite network device sequentially delivers the MDCP PDUs to a satellite link control (SLC) layer as SLC service data units (SDUs) at the SLC layer, and segments the SLC SDU into N SLC PDUs at the SLC layer. SLC PDUs of one or more users are obtained at a physical layer (PHY) from the SLC layer. The SLC PDUs of the one or more users are spliced together at the PHY to form outbound data of a physical slot with a fixed length. The satellite network device in turn sends the outbound data to one or more terminals.
    Type: Application
    Filed: July 29, 2022
    Publication date: October 17, 2024
    Inventors: Wenyu Gan, Feng Qian, Xudong Zhu, Zhendong Yao, Lixin Lin, Haibo Xu
  • Publication number: 20240340365
    Abstract: The rotation shaft structure includes a main shaft assembly, and two folding assemblies that are symmetrically disposed with respect to the main shaft assembly. The two folding assemblies may rotate toward or against each other relative to the main shaft assembly. When the folding assembly is specifically disposed, the folding assembly includes a rotation assembly, a support plate, and a housing mounting bracket. The rotation assembly is rotationally connected to the main shaft assembly. The support plate is rotationally connected to the housing mounting bracket and slidably connected to the rotation assembly.
    Type: Application
    Filed: June 18, 2024
    Publication date: October 10, 2024
    Inventors: Changliang LIAO, Weifeng WU, Li LIAO, Kenji NAGAI, Ding ZHONG, Qiao DENG, Tao HUANG, Qiang ZHAN, Haiqiang TIAN, Yuehua HU, Feng ZHAO, Gang WANG, Bo HUANG, Zhixiao XU, Shangyun WANG
  • Publication number: 20240336853
    Abstract: The present invention discloses a microchannel mixer, comprising a microchannel component and a shell, wherein the microchannel component is fixed inside the shell, wherein an inlet is provided at one end of the shell for feeding liquid and gas phase materials, and an outlet is provided at the other end for discharging the mixed material; said microchannel component comprises multiple stacked sheets and several layers of oleophilic and/or hydrophilic fiber filaments filled in the crevices between adjacent sheets, wherein the fiber filaments form several microchannels between them, and the fiber filaments are clamped and fixed by the sheets. The present invention also discloses a heavy oil hydrogenation reaction system comprising the above-mentioned microchannel mixer and a heavy oil hydrogenation process.
    Type: Application
    Filed: October 28, 2021
    Publication date: October 10, 2024
    Inventors: Gang WANG, Xiuna YANG, Ping JIN, Shikun NIU, Zonglin RUAN, Feng ZHOU, Dahai XU, Shicai LI
  • Publication number: 20240339522
    Abstract: In a manufacturing method for an LDMOS integrated device, a provided semiconductor substrate has an NLDMOS area and a PLDMOS area; then a dielectric layer on the NLDMOS area and a dielectric layer on the PLDMOS area are formed on the semiconductor substrate, and a stress material layer is formed on the dielectric layer on the NLDMOS area and/or on the dielectric layer on the PLDMOS area, the thickness of the dielectric layer on the NLDMOS region being greater than the thickness of the dielectric layer on the PLDMOS region; then heat treatment is performed to adjust the stress of the stress material layer, so as to improve the electron mobility of a device; then the stress material layer is removed.
    Type: Application
    Filed: December 1, 2022
    Publication date: October 10, 2024
    Inventors: Chaoqi XU, Shuxian CHEN, Chunxia MA, Yi ZHANG, Penglong XU, Feng LIN, Ruibin CAO
  • Patent number: 12110614
    Abstract: Provided is a control method for a yarn route inspection equipment, an electronic device and a storage medium. The method includes: detecting whether a first workstation in an initial yarn route inspection path is in a shoveling state; when the first workstation is not in the shoveling state, controlling the yarn route inspection equipment to inspect the first workstation; when the first workstation is in the shoveling state, controlling the yarn route inspection equipment to bypass the first workstation to inspect a second workstation and mark the first workstation as an uninspected state; and when inspection of the initial yarn route inspection path is completed and there is a workstation in the uninspected state, controlling the yarn route inspection equipment to perform supplementary inspection on the workstation in the uninspected state in the initial yarn route inspection path.
    Type: Grant
    Filed: May 26, 2024
    Date of Patent: October 8, 2024
    Assignee: ZHEJIANG HENGYI PETROCHEMICAL CO., LTD.
    Inventors: Xiantao Peng, Peng Wang, Dake Li, Feng Xu
  • Patent number: 12114418
    Abstract: This application provides an electronic module and an electronic device. The electronic module includes a first component, a second component, and a plurality of terminals. The first component includes a package substrate and a chip mounted on the package substrate. The second component includes a circuit board and a mount base mounted on the circuit board. Each terminal includes a body part, and a first bent part and a solder ball that are respectively connected to two opposite ends of the body part. In each terminal, the body part passes through and is fastened to the mount base, the first bent part presses against a corresponding first solder pad on the package substrate, and the solder ball is connected to a corresponding second solder pad on the circuit board.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: October 8, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yongyao Li, Shibin Xu, Wei Kang, Feng Wang, Xue Feng, Jiang Zhu
  • Patent number: 12112744
    Abstract: The disclosure provides a multimodal speech recognition method and system, and a computer-readable storage medium. The method includes calculating a first logarithmic mel-frequency spectral coefficient and a second logarithmic mel-frequency spectral coefficient when a target millimeter-wave signal and a target audio signal both contain speech information corresponding to a target user; inputting the first and the second logarithmic mel-frequency spectral coefficient into a fusion network to determine a target fusion feature, where the fusion network includes at least a calibration module and a mapping module, the calibration module is configured to perform mutual feature calibration on the target audio/millimeter-wave signals, and the mapping module is configured to fuse a calibrated millimeter-wave feature and a calibrated audio feature; and inputting the target fusion feature into a semantic feature network to determine a speech recognition result corresponding to the target user.
    Type: Grant
    Filed: March 2, 2022
    Date of Patent: October 8, 2024
    Assignee: Zhejiang University
    Inventors: Feng Lin, Tiantian Liu, Ming Gao, Chao Wang, Zhongjie Ba, Jinsong Han, Wenyao Xu, Kui Ren
  • Patent number: 12112673
    Abstract: The present disclosure provides a display panel and a display device. The display panel includes p pixel unit groups, and each of the p pixel unit groups includes q rows of pixel units, both p and q being integers greater than or equal to 2. Pixel units in a same group are simultaneously supplied with a gate scan signal by a same shift register, and pixel units in a same group and in a same column are supplied with data voltage signals through different data lines, respectively.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: October 8, 2024
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chongyang Zhao, Yingmeng Miao, Zhihua Sun, Feng Qu, Xiaochun Xu
  • Publication number: 20240333810
    Abstract: A system includes a processor that accesses a sequence of device events S from IoT network traffic and a plurality of user activity signatures, each user activity signature U in the plurality of user activity signatures being a known sequence of device events. The processor is configured to infer a user activity by way of approximate user activity signature matching.
    Type: Application
    Filed: March 28, 2024
    Publication date: October 3, 2024
    Applicant: Arizona Board of Regents on Behalf of Arizona State University
    Inventors: Guoliang Xue, Yinxin Wan, Kuai Xu, Feng Wang
  • Patent number: 12103561
    Abstract: Techniques relating to monitoring map consistency are described. In an example, a monitoring component associated with a vehicle can receive sensor data associated with an environment in which the vehicle is positioned. The monitoring component can generate, based at least in part on the sensor data, an estimated map of the environment, wherein the estimated map is encoded with policy information for driving within the environment. The monitoring component can then compare first information associated with a stored map of the environment with second information associated with the estimated map to determine whether the estimated map and the stored map are consistent. Component(s) associated with the vehicle can then control the object based at least in part on results of the comparing.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: October 1, 2024
    Assignee: Zoox, Inc.
    Inventors: Pengfei Duan, James William Vaisey Philbin, Cooper Stokes Sloan, Sarah Tariq, Feng Tian, Chuang Wang, Kai Zhenyu Wang, Yi Xu
  • Patent number: 12105535
    Abstract: Provided is a channel monitoring method, an electronic device, and a storage medium. The method includes: obtaining scan data collected by a vehicle body collection component of an automated guided vehicle (AGV) in an area around a vehicle body; obtaining video data collected by a camera in a video collection area, where the camera is one of a plurality of cameras and is used to collect video of at least a partial area of the channel to be monitored of the plurality of channels to be monitored; in a case of determining an existence of a target object based on the scan data collected by the vehicle body collection component and/or the video data collected by the camera, obtaining a target channel where the target object is located; and generating target warning information for the target channel where the target object is located.
    Type: Grant
    Filed: December 21, 2023
    Date of Patent: October 1, 2024
    Assignee: Zhejiang Hengyi Petrochemical Co., Ltd.
    Inventors: Peng Wang, Xiantao Peng, Dake Li, Mingyi Liu, Feng Xu, Jun Shen
  • Patent number: 12104321
    Abstract: An oxygen bleaching method of pulp includes the steps of: adding a solution formulated by a magnesium salt and an activator to an unbleached chemical pulp, stirring to be mixed well, and bleaching by introducing oxygen. The activators are nano zero-valent metals that are conventional, low-cost, and recyclable. These activators can activate low-concentration oxygen at low-temperature in neutral aqueous solution to efficiently generate peroxide anion radicals, so as to promote the generation of hydroperoxide anions and peroxide ions, achieving high efficient delignification. The whole process does not generate waste water, the oxygen consumption is only 50-85% of the original process, the yield is increased by 1.5-2.8% compared with the original system, the pulp brightness is increased to 28-32° SR, and the magnesium salt can be recycled and reused.
    Type: Grant
    Filed: February 24, 2023
    Date of Patent: October 1, 2024
    Assignee: BEIJING FORESTRY UNIVERSITY
    Inventors: Feng Xu, Wenqiu Zheng, Xiaoyu Wang, Tingting You, Hongwei Zhu
  • Patent number: 12105199
    Abstract: A system and method for measuring an image distance of power transmission lines with an unmanned aerial vehicle (UAV). The system includes: a UAV, a master console, and a plurality of cameras. The cameras are configured to collect 2D image data of a power transmission line corridor. The UAV includes a vehicle body, a lidar device, a rotor assembly, a power unit, a flight control processor, a state detection device, and a wireless communication module. The lidar device is configured to collect 3D point cloud data of the power transmission lines. The master console is configured to receive the 2D image data and the 3D point cloud data, and establish a mapping relationship between the 2D image data and the 3D point cloud data; recognize a target object, determine 3D point coordinates of the target object, and calculate a distance from the target object to the power transmission lines.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: October 1, 2024
    Assignees: State Grid Jiangsu Taizhou Power Supply Company, Allcorehatress (Beijing) Technology Co., Ltd.
    Inventors: Yongdong Dai, Jianguang Yao, Feng Mao, Maofei Wang, Wanjin Yu, Beibei Weng, Ling Ju, Zhongjun Jiang, Xinlian Bu, Weihao Fan, Ze Zhang, Xingchun Xu