Patents by Inventor Qiang Niu

Qiang Niu 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: 20200412148
    Abstract: A charger comprises a housing, a first multi-layer printed circuit board (PCB), a second multi-layer PCB, and a third multi-layer PCB. The first PCB comprises at least a portion of a primary side circuit. The second PCB comprises at least a portion of a secondary side circuit. The third PCB is perpendicular to the first PCB and the second PCB. An isolation coupling element is disposed on the third PCB. The isolation coupling element comprises a multi-layer PCB. The first PCB comprises a high voltage (HV) semiconductor package. A surface of a die paddle of the HV semiconductor package is exposed from a molding encapsulation of the HV semiconductor package.
    Type: Application
    Filed: June 28, 2019
    Publication date: December 31, 2020
    Applicant: Alpha and Omega Semiconductor (Cayman) Ltd.
    Inventors: Pei-Lun Huang, Yu-Ming Chen, Tien-Chi Lin, Jung-Pei Cheng, Yueh-Ping Yu, Zhi-Qiang Niu, Xiaotian Zhang, Long-Ching Wang
  • Publication number: 20200401161
    Abstract: A method estimates an intention of a lead vehicle by an ego vehicle. The method includes: (a) receiving, from at least one of a first plurality of sensors coupled to the ego vehicle, information associated with a parametric variable, (b) selecting a partition of an operating region of the parametric variable based on the parametric variable information, wherein the operating region includes a predetermined range of values for the parametric variable, wherein the partition includes a subset of the predetermined range of values and being associated with a predetermined ego vehicle input, and wherein the predetermined vehicle input includes at least one value for a parameter corresponding to dynamics of the ego vehicle, and (c) causing a vehicle control system of the ego vehicle to perform a vehicle maneuver based on the predetermined ego vehicle input.
    Type: Application
    Filed: June 24, 2019
    Publication date: December 24, 2020
    Inventors: Sze Zheng Yong, Ruochen Niu, Qiang Shen
  • Publication number: 20200366314
    Abstract: A device and a method for an improved compacting of compressed and uncompressed data blocks into an output buffer are provided. The device is configured to obtain a set of input data blocks comprising at least one of a compressed data block and an uncompressed data block; compact the compressed data blocks into the output buffer, starting from a first predefined region in the output buffer, such that the compressed data blocks are sequentially compacted; and compact the uncompressed data blocks into the output buffer, starting from a second predefined region in the output buffer, such that the uncompressed data blocks are sequentially compacted.
    Type: Application
    Filed: August 4, 2020
    Publication date: November 19, 2020
    Inventors: Aleksei Valentinovich ROMANOVSKII, Ilya Aleksandrovich PAPIEV, Jinbao NIU, Qiang XUE, Shaohui QUAN
  • Patent number: 10818568
    Abstract: A charger comprises a housing, a first multi-layer printed circuit board (PCB), a second multi-layer PCB, and a third multi-layer PCB. The first PCB comprises at least a portion of a primary side circuit. The second PCB comprises at least a portion of a secondary side circuit. The third PCB is perpendicular to the first PCB and the second PCB. An isolation coupling element is disposed on the third PCB. The isolation coupling element comprises a multi-layer PCB. The first PCB comprises a high voltage (HV) semiconductor package. A surface of a die paddle of the HV semiconductor package is exposed from a molding encapsulation of the HV semiconductor package.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: October 27, 2020
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR (CAYMAN) LTD.
    Inventors: Pei-Lun Huang, Yu-Ming Chen, Tien-Chi Lin, Jung-Pei Cheng, Yueh-Ping Yu, Zhi-Qiang Niu, Xiaotian Zhang, Long-Ching Wang
  • Patent number: 10787865
    Abstract: An in-situ injection of soil and groundwater—high pressure rotary jet grouting in-situ remediation system and method. The system has an agent dispensing station, high pressure grouting pump, air compressor, rotary jet grouting drilling machine, second double-pipe water flow joint, automatic lifting mechanism for grouting drill pipe of rotary jet grouting drilling machine, high pressure jet drill pipe, inner tube for high pressure jet triple drill pipe, outer tube for high pressure jet triple drill pipe, agent jet nozzle, an air jet nozzle, cemented carbide block and a drill bit. Parameters are arranged according to the triangle method to ensure that the remediation area is covered within the diffusion radius of the agent. After positioning the GPS measuring point, a guided-boring rig is positioned at the center of the injection point.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: September 29, 2020
    Assignee: BCEG Environmental Remediation Co., Ltd
    Inventors: Shupeng Li, Yuewei Yang, Lili Guo, Peng Liu, Yue Zhang, Xiaowei Song, Fan Chen, Pengcheng Yin, Fuwang Wang, Yan Liu, Qiang Niu, Fanyang Bu
  • Patent number: 10788408
    Abstract: A method for determining the diffusion radius of in-situ injection and remediation of contaminated soil and groundwater. According to the triangle method, the hole spacing is perpendicular to the groundwater flow direction, the row spacing is along the groundwater flow direction, and the flow diffusion in the groundwater during the effective time of the remediation agent reaction is considered. Under high pressure rotary injection, the remediation agent and a certain proportion of bromide ions are simultaneously injected into the aquifer as a tracer. The diffusion of the agent is determined by observing the phenomenon of slurry-returning and slurry-channeling of adjacent injection points. After the completion of the injection, the groundwater is quickly sampled in fixed depth, the tracer concentration is quickly detected on site, and the concentration of bromide ions in the groundwater is compared with the background value. Comprehensive determination determines the optimal diffusion radius.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: September 29, 2020
    Assignee: BCEG Environmental Remediation Co., Ltd
    Inventors: Yuewei Yang, Shupeng Li, Yue Zhang, Xiaobin Zhang, Lili Guo, Shuangchao Cui, Xiaowei Song, Fan Chen, Pengcheng Yin, Peng Liu, Yan Liu, Qiang Niu
  • Publication number: 20200301917
    Abstract: Disclosed are a data protection method and device and a storage medium. The method includes that a database execution engine receives data request information sent by a client; a preset policy corresponding to an identity of the client carried in the data request information is acquired and the database execution engine performs a data protection operation for requested data according to the preset policy to obtain target data; and the database execution engine sends the target data to the client.
    Type: Application
    Filed: April 1, 2019
    Publication date: September 24, 2020
    Inventors: Jiahao NIU, Qiang ZHANG, Shanhong SHEN, Dezheng WANG
  • Patent number: 10682680
    Abstract: An in-situ chemical oxidation high pressure injection optimization remediation method for soil and groundwater. A field test determines the diffusion radius of the injection agent in a typical formation, the maximum single-hole grouting amount per linear meter and the injectability parameter. Density-increased supplementary investigation, soil and groundwater data analysis, is divided by spatial distribution into four concentration main partitions, eight concentration sub-partitions. By optimizing the single-hole grouting amount per linear meter, the preparation concentration of the oxidant, and the parameters of the formulation of each partition, the optimization of the dosing ratio of remediation agent of each partition is achieved. The specific construction performance is to adjust the lifting speed of the high pressure injection drill pipe during the injection process for finally achieve the purpose of reducing the dosing ratio parameters of the agent in the remediation plot.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: June 16, 2020
    Assignee: BCEG ENVIRONMENTAL REMEDIATION CO., LTD.
    Inventors: Yuewei Yang, Shupeng Li, Yue Zhang, Fuwang Wang, Lili Guo, Xiaowei Song, Fan Chen, Pengcheng Yin, Shuangchao Cui, Yan Liu, Qiang Niu
  • Publication number: 20200154632
    Abstract: The present invention discloses an automatic boundary closing method for an intelligent lawn mower. The method includes the following steps: starting a boundary teaching mode of the intelligent lawn mower; acquiring and storing starting point position information of the intelligent lawn mower; recording position information of the intelligent lawn mower in real time and determining whether the distance between the current position of the intelligent lawn mower and the starting point is less than or equal to a distance threshold; if the distance is less than or equal to the distance threshold, further determining whether an automatic boundary closing instruction input by a user is received; executing the automatic boundary closing instruction of the user, and generating boundary closing data by using an interpolation algorithm and storing the data; and ending the boundary teaching mode. The present invention also discloses an automatic boundary closing system for an intelligent lawn mower.
    Type: Application
    Filed: January 21, 2020
    Publication date: May 21, 2020
    Inventors: YUANYUAN CHEN, ZHE NIU, WEI ZHONG, BO DING, QIANG WANG
  • Publication number: 20200121707
    Abstract: A pharmaceutical composition comprising a 4?-thionucleoside phosphamide derivative or a pharmaceutically acceptable salt, ester, hydrate, solvate, and isomer thereof, any crystalline form thereof or racemate, metabolite, or a combination of a mixture thereof with other drugs, and a method and use thereof for disease treatment and/or prevention.
    Type: Application
    Filed: August 24, 2018
    Publication date: April 23, 2020
    Inventors: Hongmei SONG, Hong ZENG, Xiaoda NIU, Ying WANG, Qiang TIAN, Daibiao XIAO, Jiaqiang CAI, Lichun WANG, Jingyi WANG
  • Patent number: 10630080
    Abstract: A charger comprises a housing, a first multi-layer printed circuit board (PCB), a second multi-layer PCB, and a third multi-layer PCB. The first PCB comprises at least a portion of a primary side circuit. The second PCB comprises at least a portion of a secondary side circuit. The third PCB is perpendicular to the first PCB and the second PCB. An isolation coupling element is disposed on the third PCB. The isolation coupling element comprises a multi-layer PCB. The first PCB comprises a high voltage (HV) semiconductor package. A surface of a die paddle of the HV semiconductor package is exposed from a molding encapsulation of the HV semiconductor package.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: April 21, 2020
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR (CAYMAN) LTD.
    Inventors: Pei-Lun Huang, Yu-Ming Chen, Tien-Chi Lin, Jung-Pei Cheng, Yueh-Ping Yu, Zhi-Qiang Niu, Xiaotian Zhang, Long-Ching Wang
  • Patent number: 10447789
    Abstract: A management server may provide distribute flow control to a computer server system for providing online services to users. The computer server system includes a bus cluster, a plurality of caller systems, and a plurality of callee clusters. The management server may be configured to receive from the bus cluster health condition data of a callee cluster of the plurality of callee cluster in a first operation cycle; determine whether the callee cluster is slow or abnormal based on the health condition data in the first cycle; adjust a data flow limit in the bus cluster in a second cycle after the first cycle according to whether the callee cluster is slow or abnormal in the first cycle; and direct the bus cluster to control the data flow of the computer servers in the bus cluster in the second cycle according to the adjusted data flow limit.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: October 15, 2019
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Yinbo Song, Rui Guo, Maoshi Mai, Zhiqiang Niu, Jinsong Zhang, Wei Cheng, Haoran Liu, Qiang Jiang, Bo Ren, Baojun Zhou
  • Publication number: 20190224729
    Abstract: An in-situ chemical oxidation high pressure injection optimization remediation method for soil and groundwater. A field test determines the diffusion radius of the injection agent in a typical formation, the maximum single-hole grouting amount per linear meter and the injectability parameter. Density-increased supplementary investigation, soil and groundwater data analysis, is divided by spatial distribution into four concentration main partitions, eight concentration sub-partitions. By optimizing the single-hole grouting amount per linear meter, the preparation concentration of the oxidant, and the parameters of the formulation of each partition, the optimization of the dosing ratio of remediation agent of each partition is achieved. The specific construction performance is to adjust the lifting speed of the high pressure injection drill pipe during the injection process for finally achieve the purpose of reducing the dosing ratio parameters of the agent in the remediation plot.
    Type: Application
    Filed: May 16, 2017
    Publication date: July 25, 2019
    Inventors: Yuewei YANG, Shupeng LI, Yue ZHANG, Fuwang WANG, Lili GUO, Xiaowei SONG, Fan CHEN, Pengcheng YIN, Shuangchao CUI, Yan LIU, Qiang NIU
  • Publication number: 20190145190
    Abstract: An in-situ injection of soil and groundwater—high pressure rotary jet grouting in-situ remediation system and method. The system has an agent dispensing station, high pressure grouting pump, air compressor, rotary jet grouting drilling machine, second double-pipe water flow joint, automatic lifting mechanism for grouting drill pipe of rotary jet grouting drilling machine, high pressure jet drill pipe, inner tube for high pressure jet triple drill pipe, outer tube for high pressure jet triple drill pipe, agent jet nozzle, an air jet nozzle, cemented carbide block and a drill bit. Parameters are arranged according to the triangle method to ensure that the remediation area is covered within the diffusion radius of the agent. After positioning the GPS measuring point, a guided-boring rig is positioned at the center of the injection point.
    Type: Application
    Filed: May 16, 2017
    Publication date: May 16, 2019
    Inventors: Shupeng LI, Yuewei YANG, Lili GUO, Peng LIU, Yue ZHANG, Xiaowei SONG, Fan CHEN, Pengcheng YIN, Fuwang WANG, Yan LIU, Qiang NIU, Fanyang BU
  • Publication number: 20190120741
    Abstract: A method for determining the diffusion radius of in-situ injection and remediation of contaminated soil and groundwater. According to the triangle method, the hole spacing is perpendicular to the groundwater flow direction, the row spacing is along the groundwater flow direction, and the flow diffusion in the groundwater during the effective time of the remediation agent reaction is considered. Under high pressure rotary injection, the remediation agent and a certain proportion of bromide ions are simultaneously injected into the aquifer as a tracer. The diffusion of the agent is determined by observing the phenomenon of slurry-returning and slurry-channeling of adjacent injection points. After the completion of the injection, the groundwater is quickly sampled in fixed depth, the tracer concentration is quickly detected on site, and the concentration of bromide ions in the groundwater is compared with the background value. Comprehensive determination determines the optimal diffusion radius.
    Type: Application
    Filed: May 16, 2017
    Publication date: April 25, 2019
    Inventors: Yuewei YANG, Shupeng LI, Yue ZHANG, Xiaobin ZHANG, Lili GUO, Shuangchao CUI, Xiaowei SONG, Fan CHEN, Pengcheng YIN, Peng LIU, Yan LIU, Qiang NIU
  • Patent number: 10082816
    Abstract: The invention relates to a method of differential protection in the power distribution networks based on phase difference principles. The method comprises the following steps: collecting the current and voltage signals of each loading switch; calculating phase difference between the corresponding currents at two adjacent loading switches, wherein at least one of the two adjacent loading switches accords with ?I? max>n·?IT+?Idz; tripping the two adjacent loading switches if the phase difference corresponding to the two adjacent loading switches being greater than a threshold then a section between the two adjacent loading switches being determined as a fault section. The method only needs to calculate the phase difference between the corresponding currents at the two adjacent loading switches, and achieves the fault determination according to the phase difference being greater than the threshold.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: September 25, 2018
    Assignees: XJ GROUP CORPORATION, XJ ELECTRIC CO., LTD, XUCHANG XJ SOFTWARE TECHNOLOGIES LTD, JIANGSU ELECTRIC POWER COMPANY RESEARCH INSTITUTE, STATE GRID CORPORATION OF CHINA
    Inventors: Qiang Niu, Jingwan Liang, Shuai Jiang, Junhong Qiu, Huawei Jia, Meng Li, Lei Gao, Yongjian Tao, Yongxin Liu, Feng Li, Xintao Dong, Yake Xi
  • Publication number: 20170038785
    Abstract: The invention relates to a method of differential protection in the power distribution networks based on phase difference principles. The method comprises the following steps: collecting the current and voltage signals of each loading switch; calculating phase difference between the corresponding currents at two adjacent loading switches, wherein at least one of the two adjacent loading switches accords with ?I?max>n·?IT+?Idz; tripping the two adjacent loading switches if the phase difference corresponding to the two adjacent loading switches being greater than a threshold then a section between the two adjacent loading switches being determined as a fault section. The method only needs to calculate the phase difference between the corresponding currents at the two adjacent loading switches, and achieves the fault determination according to the phase difference being greater than the threshold.
    Type: Application
    Filed: March 21, 2016
    Publication date: February 9, 2017
    Inventors: Qiang Niu, Jingwan Liang, Shuai Jiang, Junhong Qiu, Huawei Jia, Meng Li, Lei Gao, Yongjian Tao, Yongxin Liu, Feng Li, Xintao Dong, Yake Xi
  • Patent number: 9337131
    Abstract: An ultrathin power semiconductor package with high thermal dissipation performance and its preparation method are disclosed. The package includes a lead frame unit with a staggered structure including an upper section and a lower section. A thin layer is attached on the surface of the lead frame unit having a plurality of contact holes on the upper section and at least one opening on the lower section. A semiconductor chip is attached on the opening on the lower section of the lead frame unit and then a plurality of metal bumps are deposited, where one metal bump is formed on each contact hole on the upper section and on each of the electrodes on the top surface of the semiconductor chip.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: May 10, 2016
    Assignee: Alpha and Omega Semiconductor (Cayman) Ltd.
    Inventors: Yan Huo, Hamza Yilmaz, Jun Lu, Ming-Chen Lu, Zhi Qiang Niu, Yan Xun Xue, Demei Gong
  • Publication number: 20160093560
    Abstract: An ultrathin power semiconductor package with high thermal dissipation performance and its preparation method are disclosed. The package includes a lead frame unit with a staggered structure including an upper section and a lower section. A thin layer is attached on the surface of the lead frame unit having a plurality of contact holes on the upper section and at least one opening on the lower section. A semiconductor chip is attached on the opening on the lower section of the lead frame unit and then a plurality of metal bumps are deposited, where one metal bump is formed on each contact hole on the upper section and on each of the electrodes on the top surface of the semiconductor chip.
    Type: Application
    Filed: September 29, 2014
    Publication date: March 31, 2016
    Inventors: Yan Huo, Hamza Yilmaz, Jun Lu, Ming-Chen Lu, Zhi Qiang Niu, Yan Xun Xue, Demei Gong
  • Patent number: 9245831
    Abstract: A semiconductor package includes a lead frame having a die paddle and a plurality of leads connected to die paddle, where each lead has a lead surface parallel to die paddle and is a continuous extension bending upward from die paddle. A semiconductor chip is mounted on die paddle, where drain metal layer covering a first surface of chip is connected to die paddle, and source metal layer and gate metal layer are located on a second surface opposite to first surface with gate metal layer located at one corner of the second surface. A source metal plate and a gate metal plate are attached on source metal layer and gate metal layer respectively. A molding layer covers lead frame, semiconductor chip, source metal plate and gate metal plate, where lead surface, top surfaces of source metal plate and gate metal plate are exposed from top surface of molding layer.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: January 26, 2016
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR (CAYMAN) LTD.
    Inventors: Yan Huo, Zhi Qiang Niu, Ming-Chen Lu, Hongtao Gao