Patents by Inventor Xuemei Wu

Xuemei Wu 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: 20250125796
    Abstract: A low-jitter random clock generation circuit includes: a clock division and pulse generation module connected to an input clock, performing frequency division processing to obtain frequency division clocks, and then detecting some frequency division clocks one by one to obtain frequency division pulses in a one-to-one correspondence; a pseudorandom number generation module connected to one frequency division clock, and generating a pseudorandom number; a status control module connected to all the frequency division clocks and the pseudorandom number to generate status control signals; and a random clock output module connected to the input clock, all the frequency division clocks, all the frequency division pulses, and all the status control signals, randomly sampling the frequency division clocks by using the frequency division pulses under control of the status control signals, and synchronously outputting the randomly sampled frequency division clocks by using the input clock, to obtain random clocks.
    Type: Application
    Filed: December 26, 2024
    Publication date: April 17, 2025
    Applicant: Chongqing GigaChip Technology Co., Ltd.
    Inventors: Tao LIU, Jianan WANG, Minming DENG, Xu WANG, Lu LIU, Dongbing FU, Zhengping ZHANG, Zhou YU, Guangbing CHEN, Xuemei WU, Xiaodan ZHOU
  • Publication number: 20250125814
    Abstract: In a pipelined analog-to-digital converter, at least one pipeline stage includes an N-bit sub-analog-to-digital conversion module, a first sub-digital-to-analog conversion module, a second sub-digital-to-analog conversion module, and a switched capacitor amplification module. The first sub-digital-to-analog conversion module and the second sub-digital-to-analog conversion module respectively receive and process 2N?1 digital signals, which correspondingly require 2*2N?1 switched capacitors. In a pipeline stage based on a structure of “N-bit sub-analog-to-digital conversion module+sub-digital-to-analog conversion module+subtractor+multiplier”, the non-inverting input and the inverting input of the differential input comparison are completely symmetrical, which correspondingly requires 2*2N switched capacitors.
    Type: Application
    Filed: December 25, 2024
    Publication date: April 17, 2025
    Applicant: Chongqing GigaChip Technology Co., Ltd.
    Inventors: Tao LIU, Jianan WANG, Minming DENG, Lu LIU, Dongbing FU, Zhengping ZHANG, Zhou YU, Xu WANG, Guangbing CHEN, Xuemei WU, Xiaodan ZHOU
  • Publication number: 20250046230
    Abstract: A method for adjusting brightness of an electronic visual display of an electronic device, comprising: identifying a luminance-indicating area in a field of view of an image sensor of the electronic device; capturing at least one first image of the field of view by the image sensor; determining an ambient luminance value for the electronic visual display using the luminance-indicating area of the at least one first image; and adjusting the brightness of the electronic visual display according to the determined ambient luminance value; wherein the step of identifying the luminance-indicating area in the field of view of the image sensor comprises: capturing a plurality of second images of the field of view by the image sensor, each second image being taken at a different time of a day, and analyzing the plurality of second images so as to identify an area of the field of view of the image sensor which has the most stable average luminance level.
    Type: Application
    Filed: December 22, 2021
    Publication date: February 6, 2025
    Applicant: Ademco Inc.
    Inventors: Xuemei Wu, Silver Yang, Yanli Wang
  • Publication number: 20240328573
    Abstract: A mounting bracket comprising: a mount for attaching to an object to be supported, said mount comprising a ball-shape end portion having a first diameter; a clamping assembly, comprising: a body defining a bore extending through the body, said bore being configured for accommodating at least the ball-shape end portion of the mount, and a neck at or near one end of the bore, the neck defining a smaller opening than the first diameter to retain the ball-shape end portion within the body; a clamping support located within the bore of the clamping housing, comprising a seat portion adapted to engage the ball-shape end portion of the mount, and a clamping mechanism operable to force the clamping support against the ball shaped end portion so as to clamp the ball-shape end portion between the seat portion and the neck of the body.
    Type: Application
    Filed: March 18, 2024
    Publication date: October 3, 2024
    Inventors: Jiyang Zhang, Yongjun CHEN, Xuemei WU, Chengrui YAN
  • Publication number: 20240193508
    Abstract: The disclosure discloses a method and a system for evaluating a flight string fatigue grade based on task information; the method includes: collecting task information of a flight string, and extracting first factors influencing a flight string fatigue degree based on the task information; constructing an index evaluation system based on the first factors, and calculating a weight coefficient of each of the first factors; carrying out a segment processing on the task information to obtain duty period segments; carrying out a quantitative characterization on the each of the first factors to obtain factor intensities of the duty period segments; calculating first fatigue values of the duty period segments based on the weight coefficients and the factor intensities; calculating a second fatigue value of the whole flight string based on the first fatigue values; and determining a flight string fatigue grade based on the second fatigue value.
    Type: Application
    Filed: November 29, 2023
    Publication date: June 13, 2024
    Inventors: Jingqiang LI, Annan LIU, Huanxi ZHANG, Xuemei WU
  • Publication number: 20240124336
    Abstract: The present invention provides a high-efficient magnesium ion removal system for salt lake brine based on in situ alkali production using bipolar membrane electrochemical process, it is constructed with cathode, cathode cell, anode, anode cell, and anion exchange membranes, bipolar membranes, acid cells, alkali cells, mesh materials for precipitate aggregation, acid-washing cells.
    Type: Application
    Filed: August 8, 2022
    Publication date: April 18, 2024
    Inventors: Xuehua RUAN, Xiaobin JIANG, Gaohong HE, Xiaoming YAN, Wanting CHEN, Xuemei WU, Yan DAI, Tiantian LI, Miao YU
  • Patent number: 11949137
    Abstract: The present invention belongs to the field of alkaline polymer electrolyte membranes, and relates to a comb-shaped structure polybenzimidazole anion exchange membrane with high conductivity and preparation method thereof. In the invention, firstly, polybenzimidazole is grafted with the non-cationic side chains to the max grafting rate to synthesize the de-protonated comb-shaped polybenzimidazole material, avoiding the N—H in benzimidazole forms ionic binding with cationic functional groups, which will reduce the reactivity and mobility of cationic groups; then react de-protonated comb-shaped polybenzimidazole with quaternization reagent to attach the pendent side chain with cationic functional groups, making it easy to aggregate to form ion clusters and hydrophilic/hydrophobic microphase separation. The anion exchange membrane prepared in this invention has excellent conductivity, mechanical properties and alkaline stability.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: April 2, 2024
    Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Xuemei Wu, Gaohong He, Xiaozhou Wang, Xiaoming Yan, Tiantian Li, Wanting Chen, Xiangcun Li, Wu Xiao, Xiaobin Jiang, Fujun Cui, Yan Dai, Xuehua Ruan
  • Publication number: 20230146223
    Abstract: The present invention discloses a nucleic acids extraction system and method based on a 3D-printed microdevice, and belongs to the technical field of nucleic acids extraction. The nucleic acids extraction system is a monomer 3D-printed microdevice or a 3D-printed microdevice prepared by 3D printing technologies, the monomer 3D-printed microdevice comprises a nucleic acids binding region and a handle region, and the 3D-printed microdevice is composed of more than two monomer 3D-printed microdevices through a joining region; and the nucleic acids binding region is made of photosensitive resin or thermoplastic. An extraction method for the nucleic acids extraction system based on a 3D-printed microdevice is used to bind, clean and elute nucleic acids by moving the monomer 3D-printed microdevice or the 3D-printed microdevice among a solution containing target nucleic acids, a washing buffer and an elution buffer.
    Type: Application
    Filed: June 18, 2021
    Publication date: May 11, 2023
    Inventors: Xiaobin JIANG, Peipei LI, Menghang LI, Zhijie YUAN, Gaohong HE, Wu XIAO, Xiangcun LI, Xuemei WU
  • Patent number: 11452948
    Abstract: An experiment system and method for accurate controlling of macromolecular crystallization process. The system has a platform-equipped horizontal moving slot and channel dedicated backwash module, a droplet adding control module, an observing module, a user observation computer system, and an experimental condition control module. A high-precision movement knob of the x-axis platform and the y-axis platform of the system and the accurate position control of a syringe needle are used to ensure that the macromolecular solution can be added into the correct positions of convex or concave. The crystallization induction period of the target crystal form is determined by the real-time data of the high-speed microcamera, and the crystal cultivation environment is adjusted in real time. This is simple and easy to operate, high in productivity, can be applied to the conventional experimental replication.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: September 27, 2022
    Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Xiaobin Jiang, Mingguang Han, Gaohong He, Jin Li, Xiangcun Li, Wu Xiao, Xuemei Wu
  • Publication number: 20210202972
    Abstract: The present invention belongs to the field of alkaline polymer electrolyte membranes, and relates to a comb-shaped structure polybenzimidazole anion exchange membrane with high conductivity and preparation method thereof. In the invention, firstly, polybenzimidazole is grafted with the non-cationic side chains to the max grafting rate to synthesize the de-protonated comb-shaped polybenzimidazole material, avoiding the N—H in benzimidazole forms ionic binding with cationic functional groups, which will reduce the reactivity and mobility of cationic groups; then react de-protonated comb-shaped polybenzimidazole with quaternization reagent to attach the pendent side chain with cationic functional groups, making it easy to aggregate to form ion clusters and hydrophilic/hydrophobic microphase separation. The anion exchange membrane prepared in this invention has excellent conductivity, mechanical properties and alkaline stability.
    Type: Application
    Filed: March 19, 2020
    Publication date: July 1, 2021
    Inventors: Xuemei WU, Gaohong HE, Xiaozhou WANG, Xiaoming YAN, Tiantian LI, Wanting CHEN, Xiangcun LI, Wu XIAO, Xiaobin JIANG, Fujun CUI, Yan DAI, Xuehua RUAN
  • Patent number: 10962582
    Abstract: A ground fault locating method for a power distribution network includes: monitoring each phase line of three phase distribution lines, and in the event of occurrence of waves with fault features, performing wave recording to obtain phase line record files; combining the record files corresponding to each of the three phase lines to obtain fault record files; and synthesizing the fault record files to form a transient record file, determining a fault location according to a wave having a maximum change in wave amplitude between two points in the transient record file, and displaying the fault location in a wiring diagram. The ground fault locating method for a power distribution network can significantly improve accuracy of single-phase ground fault detection.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: March 30, 2021
    Assignees: BEIJING GUODIAN TONG NETWORK TECHNOLOGY CO., LTD, STATE GRID JIBEI ELECTRIC POWER CO., LTD, STATE GRID QINHUANGDAO POWER SUPPLY COMPANY
    Inventors: Xinling Wu, Shen Liu, Tiejun Zhao, Yue Yu, Weiyue Zhou, Chuanbo Tian, Ke Qiao, Xiaoling Zhu, Yaxin Liu, Dong Liang, Aimei Yan, Shuhan Zhang, Lili Zhang, Yi Yuan, Xuemei Wu, Jian Zhu, Lingchen Sun, Sining Wang, Man Leng
  • Patent number: 10675557
    Abstract: The present invention provides a continuous crystallization method under control of the multistage membrane modules, and belongs to the technical field of crystallization engineering. A crystallization solution is added to a crystallizer, and a stirring apparatus and a temperature control apparatus are started. After the system running stability, the loop of crystallization is started. Meanwhile, the coolant or antisolvent feed liquid loop is also started. The crystallization solution can respectively conduct crystal nucleation, growth and ripening in the multistage membrane modules, and then the crystallization solution is transported into a filter device and a drying apparatus to obtain the final crystal products. The desired crystal products can be obtained by the systematical control of the nucleation and crystal growth through the flow and the temperature of the crystallization solution, coolant or antisolvent feed liquid, and the contact time between two liquid phases.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: June 9, 2020
    Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Xiaobin Jiang, Guannan Li, Gaohong He, Linghan Tuo, Dapeng Lu, Wu Xiao, Xiangcun Li, Xuemei Wu
  • Publication number: 20200114277
    Abstract: The present invention provides a continuous crystallization method under control of the multistage membrane modules, and belongs to the technical field of crystallization engineering. A crystallization solution is added to a crystallizer, and a stirring apparatus and a temperature control apparatus are started. After the system running stability, the loop of crystallization is started. Meanwhile, the coolant or antisolvent feed liquid loop is also started. The crystallization solution can respectively conduct crystal nucleation, growth and ripening in the multistage membrane modules, and then the crystallization solution is transported into a filter device and a drying apparatus to obtain the final crystal products. The desired crystal products can be obtained by the systematical control of the nucleation and crystal growth through the flow and the temperature of the crystallization solution, coolant or antisolvent feed liquid, and the contact time between two liquid phases.
    Type: Application
    Filed: November 3, 2017
    Publication date: April 16, 2020
    Inventors: Xiaobin JIANG, Guannan LI, Gaohong HE, Linghan TUO, Dapeng LU, Wu XIAO, Xiangcun LI, Xuemei WU
  • Publication number: 20200108330
    Abstract: An experiment system and method for accurate controlling of macromolecular crystallization process. The system has a platform-equipped horizontal moving slot and channel dedicated backwash module, a droplet adding control module, an observing module, a user observation computer system, and an experimental condition control module. A high-precision movement knob of the x-axis platform and the y-axis platform of the system and the accurate position control of a syringe needle are used to ensure that the macromolecular solution can be added into the correct positions of convex or concave. The crystallization induction period of the target crystal faun is determined by the real-time data of the high-speed microcamera, and the crystal cultivation environment is adjusted in real time. This is simple and easy to operate, high in productivity, can be applied to the conventional experimental replication.
    Type: Application
    Filed: December 18, 2018
    Publication date: April 9, 2020
    Inventors: Xiaobin JIANG, Mingguang HAN, Gaohong HE, Jin LI, Xiangcun LI, Wu XIAO, Xuemei WU
  • Publication number: 20190361066
    Abstract: A ground fault locating method for a power distribution network includes: monitoring each phase line of three phase distribution lines, and in the event of occurrence of waves with fault features, performing wave recording to obtain phase line record files; combining the record files corresponding to each of the three phase lines to obtain fault record files; and synthesizing the fault record files to form a transient record file, determining a fault location according to a wave having a maximum change in wave amplitude between two points in the transient record file, and displaying the fault location in a wiring diagram. The ground fault locating method for a power distribution network can significantly improve accuracy of single-phase ground fault detection.
    Type: Application
    Filed: July 17, 2017
    Publication date: November 28, 2019
    Applicants: BEIJING GUODIAN TONG NETWORK TECHNOLOGY CO., LTD, STATE GRID JIBEI ELECTRIC POWER CO., LTD, STATE GRID QINHUANGDAO POWER SUPPLY COMPANY
    Inventors: Xinling WU, Shen LIU, Tiejun ZHAO, Yue YU, Weiyue ZHOU, Chuanbo TIAN, Ke QIAO, Xiaoling ZHU, Yaxin LIU, Dong LIANG, Aimei YAN, Shuhan ZHANG, Lili ZHANG, Yi YUAN, Xuemei WU, Jian ZHU, Lingchen SUN, Sining WANG, Man LENG
  • Patent number: 7083459
    Abstract: In some embodiments, an electrical cable connector includes a latching spring having a user-pressable top plate coupled to a fixed base through a frontal U-shaped hinge. The top plate includes bi-directionally (front and back) sloped latching protrusions which fit into matching openings defined in a complementary connector. A connector pair can be separated by pressing the top plate to lower the latching protrusions, and/or by applying a pulling force lower than a cable-damaging threshold to cause the connectors to self-release. The hinge structure can include a pair of laterally-spaced hinges separated by a central notch. The width of the central notch can be chosen to yield desired spring properties.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: August 1, 2006
    Assignee: BizLink Technology, Inc.
    Inventors: Xuemei Wu, Peixuan Hu
  • Publication number: 20060079674
    Abstract: The present invention relates generally to ovary-specific genes (O1-180, O1-184 and O1-236) and the proteins they encode. Also provided are methods for detecting cell proliferative or degenerative disorders in reproductive tissues. Yet further, the invention provides methods for scrounge of compounds that interact and/or modulate the expression or activity of the ovary-specific genes. These compounds are possible contraceptive agents and/or fertility agents.
    Type: Application
    Filed: October 14, 2004
    Publication date: April 13, 2006
    Inventors: Martin Matzuk, Yuchen Bai, Pei Wang, Xuemei Wu
  • Publication number: 20040254132
    Abstract: The present invention relates generally to ovary-specific genes (O1-180, O1-184 and O1-236) and the proteins they encode. Also provided are methods for detecting cell proliferative or degenerative disorders in reproductive tissues. Yet further, the invention provides methods for screeing of compounds that interact and/or modulate the expression or activity of the ovary-specific genes. These compounds are possible contraceptive agents and/or fertility agents.
    Type: Application
    Filed: August 5, 2004
    Publication date: December 16, 2004
    Inventors: Martin M. Matzuk, Xuemei Wu, Pei Wang, Yuchen Bai