Patents by Inventor Xiaohui Li

Xiaohui 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: 20210269408
    Abstract: A method for synthesizing valsartan, comprising the steps of: synthesizing a valsartan methyl ester intermediate to obtain a reaction mixture of the valsartan methyl ester intermediate; diluting the reaction mixture by salt water or water, and then using a first extraction solvent to extract the valsartan methyl ester intermediate; adding alkali to an organic layer containing the valsartan methyl ester intermediate for hydrolyzing, removing the organic layer, regulating pH of a water layer to be acidic by using acid, using the first extraction solvent to extract, concentrating a part of solvent, or distilling the solvent to dryness, and then adding a new solvent; finally, crystallizing, filtering, and drying to obtain the valsartan.
    Type: Application
    Filed: July 17, 2018
    Publication date: September 2, 2021
    Inventors: Xiaohui ZHOU, Xiaoren ZHU, Yuanxun ZHU, Peng DONG, Peng WANG, Jinsheng LIN, Wenquan ZHU, Min LI
  • Patent number: 11101719
    Abstract: Provided are a method and apparatus for determining motor temperature, and a storage medium. The method includes: obtaining an electromagnetic loss of each node in ? nodes acquired by decomposing components of a motor, wherein the ? is a natural number greater than 1, and at least one component in the components of the motor is decomposed into multiple nodes in the ? nodes; obtaining a thermal resistance between every two nodes in the ? nodes; and determining a temperature of the motor based on the electromagnetic loss of the each node in the ? nodes and the thermal resistance between the every two nodes in the ? nodes.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: August 24, 2021
    Assignee: GUANGZHOU AUTOMOBILE GROUP CO., LTD.
    Inventors: Bozhi Yang, Xiaohui Li, Fei Xiong, Linpei Zhu, Xiong Liu, Jin Shang
  • Patent number: 11091511
    Abstract: Provided are panaxdiol-type ginsenoside derivatives having structures as shown in formula I or formula II. Also provided are the uses thereof in the preparation of drugs for preventing and treating atherosclerosis. The panaxdiol-type ginsenoside derivatives have low cytotoxicities, can significantly reduce the percentages of the areas of atherosclerotic plaques in apoE?/? mice, can also effectively reduce the levels of low-density lipoprotein cholesterol and increase the levels of high-density lipoprotein cholesterol in serums of mice, and can significantly reduce the local TNF-? levels in the arteries of apoE?/? mice and have good anti-inflammatory effects; at a dose of 30 ?M, the panaxdiol-type ginsenoside derivatives can significantly reduce the degrees of the formation of RAW264.7 cell-derived foam cells. In addition, the preparation methods for the panaxdiol-type ginsenoside derivatives are easy to operate and obtain high yields.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: August 17, 2021
    Assignees: ARMY MEDICAL UNIVERSITY, CHONGQING PUDI BIO-PHARMACEUTICAL CO. LTD
    Inventors: Xiaohui Li, Yi Jia, Yan Huang
  • Publication number: 20210216055
    Abstract: The present invention discloses an N-1 static security analysis method for integrated energy system, including the following steps: constructing a static model of the IES including electro-gas-thermal coupling elements, calculating multiple energy flow equations, and calculating the multiple energy flow of the IES to obtain an operating status of the IES; constructing a N-1 preconceived accident set, calculating multiple energy flow of the IES, and performing security verification to the status of the coupling elements in each preconceived accident set, respectively; analyzing the security verification results by comparing the results of static security analysis under different control modes, so that an N-1 static security analysis is achieved. The present invention fully researches the security of the IES, comprehensively considers the influence of the output changes of the coupling elements on the operating point of the energy system, and evaluates the security and stability of the IES.
    Type: Application
    Filed: December 20, 2018
    Publication date: July 15, 2021
    Inventors: Tao JIANG, Houhe CHEN, Xue LI, Junyan SHAO, Guoqing LI, Rufeng ZHANG, Benxin LI, Changjiang WANG, Song ZHANG, Shuguang LI, Xiaohui LI
  • Publication number: 20210219431
    Abstract: Embodiments of this application disclose an optoelectronic component and a fabrication method thereof. The optoelectronic component includes a capacitor, an inductor, a carrier component, and an optoelectronic element, where the capacitor, the inductor, and the optoelectronic element are all disposed on the carrier component. The inductor and the capacitor are configured to form a resonant circuit, where a resonance frequency of the resonant circuit is correlated with a signal output frequency of the optoelectronic element. A first electrode of the optoelectronic element is connected to a first electrode of the carrier component through the inductor, and a second electrode of the optoelectronic element is connected to a second electrode of the carrier component. A first electrode of the capacitor is connected to the first electrode of the carrier component, and a second electrode of the capacitor is connected to the second electrode of the carrier component.
    Type: Application
    Filed: March 19, 2021
    Publication date: July 15, 2021
    Inventors: Wenjun SHI, Zhiwei LI, Qiang ZHANG, Xiaohui LI, Enbo ZHOU
  • Patent number: 11050248
    Abstract: There is provided an optimization model and methods for quick track of a Static Voltage Stability Region (SVSR) boundary of a power system. The methods include using a base power flow as a starting point to track a first power system SNB point by a traditional OPF and mapping the SNB point to obtain an SVSR boundary point, and includes repetitively changing a power stress direction to a new direction and tracking a power system SNB point in the new power stress direction and mapping the power system SNB point to obtain a new SVSR boundary point, and includes returning to the first power system SNB point if the power stress direction angle is ?0; repetitively changing the power stress direction to a new direction and tracking a power system SNB point and mapping the power system SNB point to obtain a new SVSR boundary point.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: June 29, 2021
    Assignee: NORTHEAST ELECTRIC POWER UNIVERSITY
    Inventors: Tao Jiang, Xue Li, Haoyu Yuan, Houhe Chen, Guoqing Li, Mingyu Zhang, Xiaohui Li, Rufeng Zhang, Changjiang Wang, Song Zhang
  • Patent number: 11032511
    Abstract: A frame interpolation method for a video processor includes the steps of: determining whether a first input frame is received following a long-term cadence; generating interpolated frames by applying phase coefficients in a regular phase table corresponding to the long-term cadence when the first input frame is received following the long-term cadence; and generating interpolated frames by applying phase coefficients in a bad edit phase table corresponding to a bad edit cadence when the first input frame is received without following the long-term cadence.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: June 8, 2021
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Shuting Ge, I-Feng Lin, Haibo Liu, Xiaohui Li
  • Publication number: 20210025799
    Abstract: A partial pressure tool for real-time measurement and adjustment of pressure and viscosity and a measurement method thereof. The partial pressure tool includes an outer cylinder and adjustable annular throttling grooves, and the adjustable annular throttling grooves are split-type grooves vertically and successively installed on an inner wall of the outer cylinder at equal intervals. Four single throttling grooves are adjacent to each other and arranged concentrically on a circumferential surface. A viscometer is installed on a surface of an arc-shaped inner plate in a tail-end adjustable annular throttling groove. The viscometer is connected to an induction board through a transmission line. The arc-shaped inner plate in the tail-end adjustable annular throttling groove is provided with a pressure sensor and a torque sensor, and the pressure sensor and the torque sensor both are connected to the induction board. The induction board is connected to a DSP control module.
    Type: Application
    Filed: May 29, 2020
    Publication date: January 28, 2021
    Inventors: Bin HUANG, Cheng FU, Xinyu HU, Xiaohui LI, Fajun ZHAO, Chunjing LU, Weiwen ZHANG, Xiangdong QI
  • Patent number: 10879670
    Abstract: The invention provides a continuous-wave pumped polymer laser and preparation method thereof, comprising: coating an organic polymer solution onto a substrate to form an polymer film, and applying a template having a distributed feedback structure to the polymer film, or coating an organic polymer solution onto a substrate having a distributed feedback structure to form an polymer film, and applying a plate to the polymer film; heating the substrate to reach above the phase transition temperature of the organic polymer, and applying a pressure to the template or plate for 1-100 min; and cooling the substrate to reach below the phase transition temperature of the organic polymer, and removing the template or plate from the organic polymer. The method of the invention is simple, the organic polymer molecular chain and supramolecular structure are oriented to have long range order, and the obtained laser can use continuous-wave pumping.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: December 29, 2020
    Assignee: SOOCHOW UNIVERSITY
    Inventors: Zhijun Hu, Xiaohui Li, Chinhua Wang, Yuyan Weng
  • Publication number: 20200357293
    Abstract: Embodiments of the present disclosure relate to a method and apparatus for outputting information. The method may include: acquiring flight information, airport gate information, taxiway information and a taxiing path; constructing an integer programming model according to the flight information, the airport gate information, the taxiway information and the taxiing path, the integer programming model including a target, a decision variable and a constraint; optimizing the integer programming model according to the constraint; and solving the optimized integer programming model to obtain a corresponding relationship table of flights and airport gates, and outputting the corresponding relationship table.
    Type: Application
    Filed: December 19, 2019
    Publication date: November 12, 2020
    Inventors: Chao JIANG, Xiaohui LI, Feifan FU, Wei ZHOU
  • Patent number: 10834368
    Abstract: This invention discloses a kind of reliable data transmission method based on hidden Markov model that specific to video transmission quality enhancement over lossy satellite links. It uses HMM model to forecast retransmission rate and adopts the network packet loss rate to reflect the network performance. The underlying network packet loss rate is used as the hidden state of HMM model and the retransmission rate is used as the observation state. By analyzing the historically transmitted data sessions, APRT establishes the relationship between the hidden state transition probability and the emission probability. Then, a robust and efficient retransmission rate prediction is obtained. This invention takes into full consideration of high BER in satellite network channels and adjusts the reliable level according to the satellite network channel characteristics so as to make tradeoff between instantaneity and quality. Consequently, it guarantee the QoS and QoE of video stream.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: November 10, 2020
    Assignee: SICHUAN UNIVERSITY
    Inventors: Junfeng Wang, Qin Luo, Ying Liu, Hao Niu, Xiaohui Li
  • Publication number: 20200320977
    Abstract: A speech recognition method comprises: generating, based on a preset speech knowledge source, a search space comprising preset client information and for decoding a speech signal; extracting a characteristic vector sequence of a to-be-recognized speech signal; calculating a probability at which the characteristic vector corresponds to each basic unit of the search space; and executing a decoding operation in the search space by using the probability as an input to obtain a word sequence corresponding to the characteristic vector sequence.
    Type: Application
    Filed: June 22, 2020
    Publication date: October 8, 2020
    Inventors: Xiaohui LI, Hongyan LI
  • Publication number: 20200289685
    Abstract: A UV sterilization device for a container includes a housing, a base, a receiving room formed between the housing and the base, a transmission member symmetrically and rotatably mounted on the base and including a clamp for clamping the container, an extension rod symmetrically mounted on the base and inserting into the container to stretch out and draw back relative to the container along the axial direction of the extension member, a UV sterilization member mounted on the extension member to move with the extension member, and a driving member fixed with the base and including a motor therein. The motor is fixed with the transmission member and the extension member. The motor can drive the transmission member and the container to rotate, and drive the extension member to stretch out and draw back relative to the container along the axial direction of the extension member to further drive the UV sterilization member to disinfect the container.
    Type: Application
    Filed: August 12, 2019
    Publication date: September 17, 2020
    Inventor: Xiaohui Li
  • Publication number: 20200289684
    Abstract: A UV sterilization device for a board-type kitchenware includes a base with a driving member being received therein and defining a first motor, a left work-board, a right work-board, with a receiving room being formed between the left and right work-boards for receiving the board-type kitchenware therein, and a UV sterilization module connected to the first motor, longitudinally arranged on the inside of the left and right work-boards and horizontally sliding relative to the left and right work-boards. The first motor is configured to drive the UV sterilization module to slide so as to sterilize the board-type kitchenware received in the receiving room. The present structure not only can have a good disinfection and bactericidal effect on the harmful bacteria, pathogenic bacteria and molds left on the kitchenware with a minimize disinfection time, but also can reciprocate sterilization of the board-type kitchenware to achieve all-round sterilization by simple operation.
    Type: Application
    Filed: August 12, 2019
    Publication date: September 17, 2020
    Inventor: XIAOHUI LI
  • Patent number: 10741170
    Abstract: A speech recognition method comprises: generating, based on a preset speech knowledge source, a search space comprising preset client information and for decoding a speech signal; extracting a characteristic vector sequence of a to-be-recognized speech signal; calculating a probability at which the characteristic vector corresponds to each basic unit of the search space; and executing a decoding operation in the search space by using the probability as an input to obtain a word sequence corresponding to the characteristic vector sequence.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: August 11, 2020
    Assignee: Alibaba Group Holding Limited
    Inventors: Xiaohui Li, Hongyan Li
  • Publication number: 20200232854
    Abstract: An induction cooker includes a microcrystal panel and at least three temperature sensors scattered on a bottom surface of the microcrystal panel, and the induction cooker is configured to heat a container to be measured. The method includes: obtaining temperature data collected by the at least three temperature sensors and position data of each temperature sensor relative to the microcrystal panel; obtaining an actual position of the container on the microcrystal panel according to the temperature data and the position data; obtaining a preset temperature curve matching the induction cooker according to the temperature data, and extracting a peak value of the preset temperature curve; and calculating an actual temperature of the container to be measured according to the actual position and the peak value.
    Type: Application
    Filed: April 9, 2020
    Publication date: July 23, 2020
    Inventors: Xiaohui LI, Zhao WANG, Shuai WANG, Wei CHEN, Shaohua HE
  • Publication number: 20200169084
    Abstract: There is provided an optimization model and methods for quick track of a Static Voltage Stability Region (SVSR) boundary of a power system. The methods include using a base power flow as a starting point to track a first power system SNB point by a traditional OPF and mapping the SNB point to obtain an SVSR boundary point, and includes repetitively changing a power stress direction to a new direction and tracking a power system SNB point in the new power stress direction and mapping the power system SNB point to obtain a new SVSR boundary point, and includes returning to the first power system SNB point if the power stress direction angle is ?0; repetitively changing the power stress direction to a new direction and tracking a power system SNB point and mapping the power system SNB point to obtain a new SVSR boundary point.
    Type: Application
    Filed: May 29, 2018
    Publication date: May 28, 2020
    Inventors: Tao JIANG, Xue LI, Haoyu YUAN, Houhe CHEN, Guoqing LI, Mingyu ZHANG, Xiaohui LI, Rufeng ZHANG, CHangjiang WANG, Song ZHANG
  • Publication number: 20200153200
    Abstract: The invention provides a continuous-wave pumped polymer laser and preparation method thereof, comprising: coating an organic polymer solution onto a substrate to form an polymer film, and applying a template having a distributed feedback structure to the polymer film, or coating an organic polymer solution onto a substrate having a distributed feedback structure to form an polymer film, and applying a plate to the polymer film; heating the substrate to reach above the phase transition temperature of the organic polymer, and applying a pressure to the template or plate for 1-100 min; and cooling the substrate to reach below the phase transition temperature of the organic polymer, and removing the template or plate from the organic polymer. The method of the invention is simple, the organic polymer molecular chain and supramolecular structure are oriented to have long range order, and the obtained laser can use continuous-wave pumping.
    Type: Application
    Filed: November 6, 2018
    Publication date: May 14, 2020
    Inventors: Zhijun HU, Xiaohui LI, Chinhua WANG, Yuyan WENG
  • Publication number: 20200119625
    Abstract: Provided are a method and apparatus for determining motor temperature, and a storage medium. The method includes: obtaining an electromagnetic loss of each node in ? nodes acquired by decomposing components of a motor, wherein the ? is a natural number greater than 1, and at least one component in the components of the motor is decomposed into multiple nodes in the ? nodes; obtaining a thermal resistance between every two nodes in the ? nodes; and determining a temperature of the motor based on the electromagnetic loss of the each node in the ? nodes and the thermal resistance between the every two nodes in the ? nodes.
    Type: Application
    Filed: October 12, 2018
    Publication date: April 16, 2020
    Inventors: Bozhi YANG, Xiaohui LI, Fei XIONG, Linpei ZHU, Xiong LIU, Jin SHANG
  • Patent number: 10614324
    Abstract: The disclosure discloses a method and apparatus for identifying a static obstacle. An embodiment of the method includes: determining, based on determining information corresponding to a historical laser point cloud sequence of an obstacle, a detected laser point cloud of the obstacle in a current laser point cloud frame belonging to the historical laser point cloud sequence of the obstacle, whether a given obstacle is a static obstacle. The determining information includes: a similarity between a historical motion characteristic of the given obstacle and a noise type motion characteristic, a matching degree between an appearance characteristic of the detected laser point cloud of the obstacle and an appearance characteristic of the historical laser point cloud of the obstacle, and an overlap ratio between the detected laser point cloud of the obstacle and the historical laser point cloud of the obstacle.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: April 7, 2020
    Assignee: Baidu Online Network Technology (Beijing) Co., Ltd.
    Inventors: Ye Zhang, Jun Wang, Xiaohui Li, Liang Wang