Patents by Inventor Lei Hu

Lei Hu 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: 20230030792
    Abstract: A document authenticity identification method is provided. A dynamic anti-counterfeiting point is detected in each document image of a subset of a plurality of document images. A static anti-counterfeiting point is detected in a document image of the plurality of document images. A static anti-counterfeiting point feature is generated based on image feature information of the static anti-counterfeiting point that is extracted from the document image. A dynamic anti-counterfeiting point feature is generated based on image feature information of the dynamic anti-counterfeiting point and variation feature information of the dynamic anti-counterfeiting point. A first authenticity result corresponding to the static anti-counterfeiting point is determined based on the static anti-counterfeiting point feature. A second authenticity result corresponding to the dynamic anti-counterfeiting point is determined based on the dynamic anti-counterfeiting point feature.
    Type: Application
    Filed: October 13, 2022
    Publication date: February 2, 2023
    Applicant: Tencent Technology (Shenzhen) Company Limited
    Inventors: Yan ZHENG, Lei WU, Haoyu CAO, Bing LIU, Yiqing HU
  • Patent number: 11569527
    Abstract: The present disclosure describes various types of batteries, including lithium-ion batteries having an anode assembly comprising: an anode comprising a first porous ceramic matrix having pores; and a ceramic separator layer affixed directly or indirectly to the anode; a cathode; an anode-side current collector contacting the anode; and anode active material comprising lithium located within the pores or cathode active material located within the cathode; wherein, the ceramic separator layer is located between the anode and the cathode, no electrically conductive coating on the pores contacts the separator layer, and in a fully charged state, lithium active material in the anode does not contact the separator layer. Also disclosed are methods of making and methods of using such batteries.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: January 31, 2023
    Assignee: University of Maryland, College Park
    Inventors: Liangbing Hu, Eric D. Wachsman, Boyang Liu, Lei Zhang, Shaomao Xu, Dennis McOwen, Chunpeng Yang
  • Publication number: 20230016895
    Abstract: An integrated circuit (IC) includes a first power supply node configured to have a first power supply voltage level, a second power supply node configured to have a second power supply voltage level separate from the first power supply voltage level, an n-well, a bias circuit, and a level shifter. The n-well contains first and second PMOS transistors including first source/drain (S/D) terminals coupled to the first power supply node, and third and fourth PMOS transistors including second S/D terminals coupled to the second power supply node. The bias circuit includes the first PMOS transistor including a third S/D terminal coupled to the n-well and a gate coupled to the second power supply node, and the third PMOS transistor including a fourth S/D terminal coupled to the n-well and a gate coupled to the first power supply node. The level shifter includes the second and fourth PMOS transistors.
    Type: Application
    Filed: August 8, 2022
    Publication date: January 19, 2023
    Inventors: Yaqi MA, Lei PAN, JunKui HU
  • Publication number: 20230011771
    Abstract: A distance measurement system and a vehicle are provided. The distance measurement system includes a scanning module and a distance measurement module. The distance measurement module is configured to: emit laser light to the scanning module, and receive reflected light transmitted by the scanning module. The scanning module includes a moving component and a lens group. The moving component is configured to drive the lens group to perform scanning. The lens group is further configured to: receive reflected light of a measured object in an environment of the distance measurement system, and transmit the reflected light to the distance measurement module.
    Type: Application
    Filed: September 16, 2022
    Publication date: January 12, 2023
    Inventors: Chihao HU, Lei YAN, Wei XIONG
  • Publication number: 20230006201
    Abstract: Over-lithiated cathode materials for use in an electrochemical cell that cycles lithium ions, and methods of making and using the same, are provided. The over-lithiated cathode materials may include positive electroactive materials selected from the group consisting of: Li2Mn2O4, Li2MSiO4 (where M is Fe, Mn, Co, or Mn), Li2VOPO4, and combinations thereof. Methods for preparing the positive electroactive material may include charging an electrochemical cell at a first voltage window and discharging the electrochemical cell at a second a second voltage window that is less than the first voltage window. The electrochemical cell may include a positive electrode, including the positive electroactive material, and a negative electrode, including a volume-expanding negative electroactive material. During charging, lithium ions and electrons may move from the positive electrode to the negative electrode.
    Type: Application
    Filed: June 30, 2021
    Publication date: January 5, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Lei WANG, Jiazhi HU
  • Publication number: 20230006797
    Abstract: This application provides a communication method and apparatus. One example method includes, obtaining, by a terminal device, a first frequency domain resource and a second frequency domain resource, wherein the first frequency domain resource and the second frequency domain resource are independently configured, and the second frequency domain resource comprises a control-resource set (CORESET) 0 and an initial bandwidth part (BWP); and receiving, by the terminal device, first information, wherein the first information is used to schedule a downlink data channel, the first information comprises frequency domain resource assignment information, wherein the frequency domain resource assignment information indicates a frequency domain resource of the downlink data channel within a range of the first frequency domain resource, and the first information is scrambled by using a group-radio network temporary identifier (G-RNTI) this application.
    Type: Application
    Filed: September 12, 2022
    Publication date: January 5, 2023
    Inventors: Dan HU, Lei GUAN, Ruixiang MA
  • Patent number: 11542753
    Abstract: A mechanical rotary steering drilling tool for steering a drill string includes a test section, a clutch device, a control mechanism, and an execution part. The test section is used as an upper joint in cooperation with the tool. The clutch device is externally connected with a guide body and internally coupled with a mandrel. A groove on a cylindrical surface of a switch control cylinder is matched with a control screw to determine rotation of a fluid channel switch. A pushing block of the execution part extends out against a wellbore wall to push a drill bit for steering drilling after the fluid channel is opened.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: January 3, 2023
    Assignees: Southwest Petroleum University, Sichuan Jutingzao Technology Co., Ltd.
    Inventors: Jialin Tian, Zhichao Hu, Tongxu Ge, Lin Yang, Chunyu Xing, Lei Tang
  • Patent number: 11542751
    Abstract: A drilling tool is disclosed. The two ends of the drilling tool are respectively connected with an upper drilling tool and a drill bit. The drilling tool includes an axial striking part, a torsional striking part, and an auxiliary part. Under the combined action of a spring and a high-pressure drilling fluid, the hammer of the axial striking part generates an axial striking force to strike the upper housing; and the pendulum of the torsional striking part generates a torsional striking force to strike the lower housing. The reversing switch and the center tube are plugged together to simultaneously reverse torsion and axial striking forces, respectively. The high-pressure drilling fluid pushes the hammer and the pendulum to generate axial and torsional striking forces, respectively, to effectively increase the ROP and reduce the stick-slip phenomenon. The drilling tool is stable and reliable in a complex and changeable downhole environment.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: January 3, 2023
    Assignees: Southwest Petroleum University, Sichuan Jutingzao Technology Co., Ltd.
    Inventors: Jialin Tian, Lei Tang, Zhichao Hu, Tongxu Ge, Lin Yang, Chunyu Xing
  • Publication number: 20220417144
    Abstract: This application provides a packet processing method and a device. In this application, a control identifier field is added to a packet, and the control identifier field indicates whether forwarding of the packet is allowed when a resource corresponding to a slice identifier fails to be matched. The control identifier field and a slice identifier of a network slice are carried in the packet, so that the slice identifier and the control identifier field are transmitted on a network together. When a receive end fails to match the resource corresponding to the slice identifier, the receive end can discard the packet based on the control identifier field, instead of forwarding the packet by using routing information.
    Type: Application
    Filed: September 6, 2022
    Publication date: December 29, 2022
    Inventors: Lei Bao, Juhua Xu, Zhibo Hu
  • Patent number: 11535104
    Abstract: A train, comprising a train formation consisting of a head car, a power car and an intermediate car, end walls of the head car, power car and intermediate car having thereon oppositely disposed connectors 2 extending perpendicular to a direction of travel of the train; all connectors 2 on the end walls of the train are connected by means of wiring; the head car, power car and intermediate car connect electric power wiring of the whole train by means of the connectors when in any formation state; the train has disposed thereon two parallel power supply wires penetrating the entire train and multiple auxiliary power supply systems. The present invention can decrease different voltage standard conversion equipment of a multiple unit, lowering in-vehicle equipment costs.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: December 27, 2022
    Assignee: CRRC TANGSHAN CO., LTD.
    Inventors: Yang Hu, Wenchao Fu, Lei Liu, Yongmei Fan, Chunxing Pei, Shaojing Sun, Liping Zhang, Hua Shi, Ruimei Wu, Ying Li, Yuanyuan Shuai, Jingyuan Li
  • Patent number: 11535633
    Abstract: This application discloses a new class of fused tricyclic heterocycles of formula (I), preparation methods thereof, pharmaceutical compositions comprising these compounds, and pharmaceutically acceptable salts, solvates, or prodrugs thereof, and their uses for the treatment of diseases in which modulation of STING is beneficial, for example, cancers, pre-cancerous disorders, and viral infections.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: December 27, 2022
    Assignees: Jiangsu Hengrui Medicine Co., Ltd., Shanghai Hengrui Pharmaceutical Co., Ltd.
    Inventors: Dong Liu, Lei Chen, Linghang Zhuang, Puhui Li, Xinzhu Zhang, Chunying Song, Matthew Miller, Qiyue Hu, Yuna Yan, Feng He, Weikang Tao
  • Publication number: 20220402363
    Abstract: A control method and system of a fuel cell electric vehicle stack. The control method comprises obtaining insulation resistance of the stack, comprising at least two sub-stacks connected in parallel; and disconnecting a sub-stack with insulation failure from a DC bus and then causing the stack to enter a failure mode when it is determined that the insulation resistance of the stack is smaller than a first preset threshold. The stack is determined to have an insulation failure when it is determined that the insulation resistance of the stack is smaller than the first preset threshold. The sub-stack with the insulation failure is located and disconnected the sub-stack with insulation failure from a DC bus, and the stack is then caused to run in a failure mode to perform failure protection, avoid deterioration of the insulation failure and burnout of the stack and improve the safety performance of the stack.
    Type: Application
    Filed: October 9, 2020
    Publication date: December 22, 2022
    Inventors: Lei Sun, Chao Yu, Youpeng Chen, Gangyi Hu
  • Publication number: 20220402933
    Abstract: A preparation method of an intermediate compound of formula II ((1R,2S,3S,4S,5S,6R,11S,14S,17S,19R,21R,23S,25R,26R,27S,31R,34S)-25-[(2S)-2,3-dihydroxy]-2,5-di hydroxy-26-methoxy-19-methyl-13,20-dimethylene-24,35,36,37,38,39-hexaoxane[29.3.1.13,6.14,34.111,14.117,21.023,27]nonatriacontan-8,29-dione) for eribulin mesylate is provided, including subjecting a compound of formula I to a reaction with an additive in the presence of tetra-n-butylammonium fluoride (TBAF). The additive is piperidine hydrochloride or pyridine hydrochloride, and a reaction formula is as follows: The present invention aims to avoid the problem that a traditional synthetic route has a low yield.
    Type: Application
    Filed: November 5, 2021
    Publication date: December 22, 2022
    Applicant: WISDOM PHARMACEUTICAL CO., LTD
    Inventors: Xiaolong QIU, Tao XU, Zhiwei ZUO, Jie GE, Xinwei LU, Lingling CHU, Wenbo LIU, Biao WANG, Tingwei GU, Weiwei WANG, Lin HU, Ping ZOU, Jun CHEN, Lei CAO
  • Publication number: 20220400471
    Abstract: This application discloses a method for sending a physical uplink shared channel and an apparatus and relates to the communication field, to resolve a problem of how to transmit uplink data to different TRPs by using different precoding matrices. A network device sends indication information to a terminal device, where the indication information is used to indicate first information and second information. The first information is used to indicate first precoding information corresponding to a first nominal PUSCH repetition. The second information is used to indicate second precoding information corresponding to a second nominal PUSCH repetition. The terminal device sends N PUSCHs based on precoding information indicated by the indication information. The precoding information corresponding to the N PUSCHs includes at least one of the first precoding information and the second precoding information.
    Type: Application
    Filed: August 12, 2022
    Publication date: December 15, 2022
    Inventors: Dan HU, Yongxia LYU, Lei GUAN, Xianda LIU, Ruixiang MA
  • Publication number: 20220391339
    Abstract: A control method and device for bidirectional communication are provided. A handshake between the master and slave communication units is realized by sending the training sequence. The master communication unit is controlled to obtain control information from the ECU. The control information is packaged into the custom package, and the custom package is encoded. The master communication unit is controlled to send the custom package to the slave communication unit. The slave communication unit decodes, verifies and corrects the custom package. The slave communication unit feeds back the correct message to the master communication unit if the custom package is verified to be correct, else feeds back the error message to the master communication unit. The master communication unit resends the custom package to the slave communication unit if it receives the error information or does not receive any feedback information within the preset time period.
    Type: Application
    Filed: August 27, 2021
    Publication date: December 8, 2022
    Applicant: SHENZHEN LONTIUM SEMICONDUCTOR TECHNOLOGY CO., LTD.
    Inventors: Xinrun XING, Shengquan HU, Shenghui BAO, Jin SU, Lei LI
  • Patent number: 11513044
    Abstract: A split-type device for measuring rock mass deformation under high hydraulic pressure and a construction method and use thereof. Main components of the device include a metal measuring rod, a magnetic iron core, a shell, a waterproof coil framework, a coil, a tail accessory, a cable clamp, a cable, a signal processing bin, etc. Main electronic components are treated by adopting the all-metal shell and a vacuum particle sealing double-layer sealing process, and have hydraulic pressure resistance of 5 MPa or above. Measurement signals feature centralized processing, digitization and dual utilization of signals, i.e., after data of a plurality of sensors is processed in an electronic bin and then digitized signals are connected to an independent reader outside the bin or a centralized acquisition device for in-situ tests.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: November 29, 2022
    Assignee: Changjiang River Scientific Research Institute of Changjiang Water Resources Commission
    Inventors: Aiqing Wu, Lei Fan, Qixiang Fan, Xiaoyu Han, Zhiquan Ke, Yihu Zhang, Yuankun Liu, Zuowu Zhong, Meiwan Yu, Kun Wu, Wei Hu, Chong Chen, Qian Xiang
  • Publication number: 20220371082
    Abstract: A casting and outputting system is provided. The system includes a casting machine, a disc body, a transfer device, a special fixture, a cooling tank, a collection device and a waste plate rack. The transfer device is configured to drive the special fixture to take out anode plates cast on the disc body, place a qualified one of the anode plates in the cooling tank, place an unqualified one of the anode plates on the waste plate rack, lift the anode plate cooled in the cooling tank, and place the cooled anode plate on the collection device for stacking.
    Type: Application
    Filed: August 4, 2022
    Publication date: November 24, 2022
    Inventors: Aimin DENG, Fangcheng ZENG, Xiaoguang SHAO, Zhen WEI, Gang LI, Jingzhang LIN, Minyong HU, Mulian TU, Daoshun CHENG, Lei LI, Jialiang WANG, Hongdao PENG, Jianfei HUANG
  • Publication number: 20220373845
    Abstract: Provided is an array substrate. The array substrate includes a plurality of sub-pixels; wherein a storage capacitor and an extended storage capacitor are disposed in each of the plurality of sub-pixels, the extended storage capacitor and the storage capacitor being connected in parallel; and the array substrate includes a gate electrode layer, a source and drain electrode layer, and a pixel electrode.
    Type: Application
    Filed: March 9, 2021
    Publication date: November 24, 2022
    Inventors: Zhengdong Zhang, Xiaofei Yang, Lei Su, Limiao Wang, Hongjun Wang, Jia Meng, Xiaoxu Hu
  • Patent number: 11506780
    Abstract: The present disclosure describes an intelligent roadside unit and a control method thereof, comprising: a circular camera array, including a plurality of cameras for capturing images in different road directions respectively; a circular radar array, including a plurality of radars for detecting obstacle information in different road directions respectively; and a controller configured to determine whether a vehicle is approaching according to the obstacle information detected by the radars, to turn on a camera corresponding to the radar that has detected the approaching of the vehicle to capture an image, and to control the cameras corresponding to the radars that have not detected the approaching of the vehicle to be in a standby state.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: November 22, 2022
    Assignee: Apollo Intelligent Driving Technology (Beijing) Co., Ltd.
    Inventors: Huo Cao, Lei Fang, Xing Hu, Yifeng Shi, Sheng Tao, Haisong Wang
  • Publication number: 20220366657
    Abstract: A remote monitoring method based on information fusion and virtual reality for marine engine room is disclosed, which comprises five steps: information acquisition; data analysis; feature extraction; data transmission; 3D scenes establishment. This method can monitor not only the conventional working parameters of main equipment in marine engine room, but also static pictures, infrared thermograms, vibration & noise signals, which can monitor accidents in engine room and enhance operators' awareness of autonomous ships; 3D interactive scenes of marine engine room are built and displayed through visual interfaces, which can make up for the lack of operators' attendance in future unmanned ships.
    Type: Application
    Filed: June 10, 2022
    Publication date: November 17, 2022
    Inventors: Yihuai Hu, Jiawwei Jiang, Lei Guo