Patents by Inventor Lei Xu

Lei 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).

  • Patent number: 12381910
    Abstract: The present application discloses a method, system, and computer system for detecting malicious SQL or command injection strings. The method includes obtaining an SQL or command injection string and determining whether the command injection string is malicious based at least in part on a machine learning model.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: August 5, 2025
    Assignee: Palo Alto Networks, Inc.
    Inventors: Zhibin Zhang, Jin Chen, Yu Fu, Stefan Achleitner, Bo Qu, Lei Xu
  • Patent number: 12372506
    Abstract: A MEMS gas sensor (A), array thereof, and preparation method therefor. The MEMS gas sensor comprises a first substrate (A2) provided with a first cavity (A1), and N gas detection assemblies (A3) provided at an opening of A1, each A3 comprises: a supporting arm (A31) and a gas detection part (A32) provided on the A31; the A32 comprises a strip-shaped heating electrode part (A321), an insulating layer (A322), a strip-shaped detection electrode part (A323), and a gas-sensitive material part (A324) that are stacked sequentially; the A323 comprises a first detection electrode part (A323-1) and a second detection electrode part (A323-2) with a first opening (A325) therebetween; the A324 is provided at the A325; a first end of the A324 is connected to the A323-1, a second end of the A324 is connected to the A323-2; strip-shaped heating electrode parts in each A3 are connected sequentially to form a heater (A8).
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: July 29, 2025
    Assignee: Wiinaa Co., Ltd.
    Inventors: Lei Xu, Dongcheng Xie, Dongliang Chen
  • Patent number: 12368261
    Abstract: A conductive terminal, a conductive terminal assembly and a connector are provided. The conductive terminal assembly includes a casing and at least one row of conductive terminals. The at least one row of conductive terminals includes a plurality of conductive terminals arranged side by side. Each conductive terminal includes a contact arm, a contact pin, an extension part and a tenon structure. The contact arm extends along a first direction, the contact pin extends along a second direction, and the first direction is perpendicular to the second direction. The extension part is connected between the contact arm and the contact pin, and the extension part is bent and extended relative to the contact pin. The tenon structure is connected to one of the contact arm and the contact pin. The tenon structure extends in parallel along the first direction or the second direction.
    Type: Grant
    Filed: June 26, 2022
    Date of Patent: July 22, 2025
    Assignee: Bellwether Electronic (Kunshan) Co., Ltd
    Inventors: Guang-Lei Xu, Li-Yong Bai
  • Publication number: 20250223542
    Abstract: The invention provides a recombinant microalgal strain comprising in its genome a first modification which causes overexpression of a PSR1 gene, and optionally a further modification which reduces or eliminates expression from an endogenous PTC1 gene. The strains of the invention have utility in promoting phosphate uptake, for example from wastewater, with the microalgae then being useful as fertilisers.
    Type: Application
    Filed: April 12, 2023
    Publication date: July 10, 2025
    Applicant: INSTITUTE OF AGRICULTURAL RESOURCES AND REGIONAL PLANNING OF THE CHINESE ACADE
    Inventors: Keke YI, Long WANG, Xianqing JIA, Lei XU
  • Publication number: 20250211602
    Abstract: A system, method, and device for classifying traffic is disclosed. The method includes (i) correlating a plurality of network traffic sessions with same source indicators to obtain correlated network traffic, (ii) classifying the plurality of network traffic sessions based at least in part on a plurality of first-layer classifiers to obtain a set of first-layer classifications, wherein the plurality of first-layer classifiers are respectively associated with a plurality of protocols, and (iii) determining a second-layer classification for the correlated network traffic based at least in part on the set of first-layer classifications.
    Type: Application
    Filed: December 22, 2023
    Publication date: June 26, 2025
    Inventors: Lei Xu, Taojie Wang, Shengming Xu
  • Publication number: 20250195590
    Abstract: The present invention provides a composition comprising a phage and an allicin for treating Pseudomonas aeruginosa infection, where the phage is Pseudomonas aeruginosa phage vB_PaeP_GZMU_A1002, deposited in the Guangdong Microbial Culture Collection Center with a deposit number of GDMCC No:64029-B1. The phage has a synergistic anti-Pseudomonas aeruginosa effect when in combination with allicin.
    Type: Application
    Filed: January 8, 2025
    Publication date: June 19, 2025
    Inventors: Ping CHEN, Yinglin YIN, Kailin YUAN, Baoqi CAI, Sifang DOU, Lei XU, Ziru ZHOU, Yuan FU, Taoxia E, Jiayi LIU, Zhihuang HE, Wanyu WANG
  • Publication number: 20250196265
    Abstract: The present application relates to the field of remanufacturing, particularly to a laser cladding repair method and apparatus for surface damage of part, and a part. The laser cladding repair method for surface damage of part includes: preparing a cladding material for repair, and preparing a groove based on a defect characteristic of a to-be-repaired part obtained from inspection and assessment; performing procedure optimization and procedure qualification; performing, based on a result of the procedure optimization and the procedure qualification, laser cladding repair procedure on a defect location to form a cladding layer on the groove; and performing quality evaluation on the cladding layer. This method may be used for surface repair of damaged surfaces of parts during service, achieving dimensional recovery, performance maintenance, and repeatedly installing and using parts, to solve the practical problems of traditional “replacement instead of repair”.
    Type: Application
    Filed: December 17, 2024
    Publication date: June 19, 2025
    Inventors: Xiaohui HAN, Lei XU, Zhiyi ZHANG, Yongshou WU, Xifeng FANG, Gangqing LI, Jinshan CAO, Yin MA, Yihui GUAN
  • Patent number: 12330821
    Abstract: Aspects an autonomous driving system with air support are described herein. The aspects may include an unmanned aerial vehicle (UAV) in the air and a land vehicle on the ground communicatively connected to the UAV. The UAV may include at least one UAV camera configured to collect first ground traffic information and a UAV communication module configured to transmit the collected first ground traffic information. The land vehicle may include one or more vehicle sensors configured to collect second ground traffic information surrounding the land vehicle, a land communication module configured to receive the first ground traffic information from the UAV, and a processor configured to combine the first ground traffic information and the second ground traffic information to generate a world model.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: June 17, 2025
    Assignee: Nullmax (Hong Kong) Limited
    Inventors: Lei Xu, Erkang Cheng, Tingting Zhu
  • Patent number: 12332109
    Abstract: A method for configuring a calibration mechanism in a force sensor (100) has the steps of: coupling an end of the calibration lever (1071) to a loading end (102) of the force sensor; adjusting, in a no-load condition, the center of gravity (G0) of the unloaded calibration lever (1071), so that the center of gravity (G0) lies on a horizontal line (H) through the center of a calibration lever fulcrum (1031) at a fixed end (103) thereof; and adjusting, in a full-load condition, the center of gravity (G1) of the calibration lever (1071) loaded with the calibration weight (106), so that the center of gravity (G1) lies on the horizontal line (H) through the center of the calibration lever fulcrum. The calibration error caused by inclination in the force sensor is reduced by practice of this method.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: June 17, 2025
    Assignees: Mettler-Toledo (Changzhou) Precision Instruments Ltd., Mettler-Toledo (Changzhou) Measurement Technology Ltd., Mettler Toledo International Trading (Shanghai) Co., Ltd
    Inventors: Lei Xu, Jean Christophe Emery, Li Yang
  • Publication number: 20250165700
    Abstract: A method and a device for outputting insurance outbound conversation information based on a generative large language model are provided, aiming to solve the problem of low accuracy in the output of insurance outbound conversation information based on generative large language models, which relates to the technical field of data processing. The method includes: acquiring conversation information in outbound consultation on an insurance product; classifying the conversation information with a trained generative large language model to obtain a classification result of the conversation information, where the generative large language model is trained with a training sample set obtained by performing deduplication on crossing area in formulated conversation sample data; and determining the insurance outbound conversation information for the outbound consultation based on the classification result and outputting the insurance outbound conversation information.
    Type: Application
    Filed: October 28, 2024
    Publication date: May 22, 2025
    Applicant: Beijing Waterdrop Technology Group Co., Ltd.
    Inventors: Peng SHEN, Lei XU, Ting HUANG, Yinfeng LI, Hailun LIU, Zhizhuo WANG, Mingxing HUANG, Xiaobo ZHOU
  • Patent number: 12294258
    Abstract: The present disclosure provides a multi-excitation-source axial-flux permanent-magnet motor with partitioned, hierarchical, and variable poles, and a variable-condition driving control system. The motor mainly includes a main magnetic pole and an auxiliary magnetic pole. The main magnetic pole is responsible for providing a main air gap flux and is connected in series with a dual-stator magnetic circuit. The auxiliary magnetic pole is responsible for adjusting an air gap field and is connected in parallel with the dual-stator magnetic circuit. Magnetic fluxes of the main magnetic pole and the auxiliary magnetic pole together constitute the air gap field. The present disclosure can control a flux path of the auxiliary magnetic pole by controlling the magnitude of a current applied to a field winding, thereby adjusting an air gap flux, expanding a speed range of the motor, and achieving variable-condition operation of the motor.
    Type: Grant
    Filed: May 6, 2023
    Date of Patent: May 6, 2025
    Assignee: Jiangsu University
    Inventors: Lei Xu, Danchen Xu, Chao Zhang, Xiaohua Zang, Xiaoyong Zhu, Li Quan
  • Patent number: 12282738
    Abstract: Various examples are directed to systems and methods for characterizing natural language text units. A plurality of text units may be used to train a bidirectional model. A bidirectional model may be applied to a set of annotated text units to generate a plurality of span context vectors. The plurality of span context vectors may be used to train a span prediction model. The span prediction model may be applied to at least a portion of the plurality of text units to generate a plurality of span characterizations, a first span characterization corresponding to a first span indicating that the first span describes a first job skill.
    Type: Grant
    Filed: May 3, 2022
    Date of Patent: April 22, 2025
    Assignee: SAP SE
    Inventors: Lei Xu, Deng Feng Wan
  • Publication number: 20250119442
    Abstract: A modular adversarial training data generator (“generator”) generates adversarial training data for a machine learning (ML) model to detect malicious protocol data units (PDUs). The adversarial training data mimics high volume cyberattacks by perturbing PDUs to bypass malicious detection systems. For HyperText Transfer Protocol (HTTP) PDUs, the generator rearranged, replaces, and grid searches values of HTTP header fields to generate the adversarial training data. The generator further biases grid search based on metrics for values of HTTP header fields that quantify impact of replacing the values on malicious verdicts by ML models trained on the adversarial training data.
    Type: Application
    Filed: October 6, 2023
    Publication date: April 10, 2025
    Inventors: Ajaya Neupane, Yu Fu, Lei Xu, Mei Wang, Fikirte Ayalke Demmese
  • Patent number: 12257642
    Abstract: A method of fabricating of an object includes causing a first heat source to heat a feed material to form a melt pool of the feed material on a surface. The method further includes causing a second heat source to heat the melt pool on the surface to regulate grain formation of the feed material in the melt pool as the melt pool cools and solidifies on the surface to form at least a portion of the object. The method also includes causing the first heat source and the second heat source to move relative to the surface as the melt pool is formed and cooled.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: March 25, 2025
    Assignee: THE BOEING COMPANY
    Inventors: Nathan A. Ashmore, Gary W. Coleman, David Griffiths, Michelangelo Mortello, Robert James Scudamore, Lei Xu
  • Publication number: 20250079959
    Abstract: The present disclosure provides a multi-excitation-source axial-flux permanent-magnet motor with partitioned, hierarchical, and variable poles, and a variable-condition driving control system. The motor mainly includes a main magnetic pole and an auxiliary magnetic pole. The main magnetic pole is responsible for providing a main air gap flux and is connected in series with a dual-stator magnetic circuit. The auxiliary magnetic pole is responsible for adjusting an air gap field and is connected in parallel with the dual-stator magnetic circuit. Magnetic fluxes of the main magnetic pole and the auxiliary magnetic pole together constitute the air gap field. The present disclosure can control a flux path of the auxiliary magnetic pole by controlling the magnitude of a current applied to a field winding, thereby adjusting an air gap flux, expanding a speed range of the motor, and achieving variable-condition operation of the motor.
    Type: Application
    Filed: May 6, 2023
    Publication date: March 6, 2025
    Applicant: Jiangsu University
    Inventors: Lei XU, Danchen XU, Chao ZHANG, Xiaohua ZANG, Xiaoyong ZHU, Li QUAN
  • Publication number: 20250077725
    Abstract: Introduced are a method, a software apparatus, an electronic device, and a storage medium for simulating inerter using finite element analysis. The method involves: acquiring structural parameters of an inerter; simulating the mechanical properties of racks on rigid rods and flywheels within the inerter using the structural parameters and a finite element platform; formulating constraint equations and transformation formula to simulate translational-rotational conversion and inertia amplification mechanism of the inerter; integrating the force and constraint information to achieve the finite element simulation of the inerter. The finite element simulation method for the inerter addresses the challenge of lacking “inerter units” and the inability to simulate inertia components in general finite element software platforms. It also overcomes the technical bottleneck of real-time dynamic coupling simulation between inerter and complex engineering structures.
    Type: Application
    Filed: August 8, 2024
    Publication date: March 6, 2025
    Inventors: Can Shi, Yu Zhou, Yanliang Du, Lei Xu, Yun Li
  • Publication number: 20250077834
    Abstract: The present disclosure is generally related to a deep neural network (DNN) device comprising a plurality of spin-orbit torque (SOT) cells. The DNN device comprises an array comprising n rows and m columns of nodes, each row of nodes coupled to one of n first conductive lines, each column of nodes coupled to one of m second conductive lines, each node of the n rows and m columns of nodes comprising a plurality of SOT cells, each SOT cell comprising: at least one SOT layer, at least one ferromagnetic (FM) layer, and a controller configured to store at least one corresponding weight of an n×m array of weights of a neural network in each of the SOT cell. The FM layer may comprise two or more domains, two or more elliptical arms, or two or more states.
    Type: Application
    Filed: November 20, 2024
    Publication date: March 6, 2025
    Applicant: Western Digital Technologies, Inc.
    Inventors: Quang LE, Xiaoyong LIU, Lei XU, Brian R. YORK, Cherngye HWANG, Hisashi TAKANO
  • Publication number: 20250072342
    Abstract: A method for cultivating alcohol-brewing sorghum on the basis of a biodegradable mulching film includes five steps such as farmland preparation, film mulching, sowing operation, field management and harvesting. Compared with a traditional alcohol-brewing sorghum planting method, the method of the present invention can effectively bring forward the planting time of alcohol-brewing sorghum, reduce the sowing amount of alcohol-brewing sorghum, assist in increasing the germination rate of alcohol-brewing sorghum, and promote the growth and development of alcohol-brewing sorghum; moreover, the method of the present invention effectively reduces the labor intensity and cost of a weeding operation in field management.
    Type: Application
    Filed: September 30, 2022
    Publication date: March 6, 2025
    Applicant: JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
    Inventors: Lei XU, Min WANG, Gang CHEN, Nina YAN, Xizhi JIANG, Jingwen CHEN, Jie PI, Jun LIU, Hongde XIE, Min FENG
  • Patent number: D1066703
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: March 11, 2025
    Inventor: Lei Xu
  • Patent number: D1080659
    Type: Grant
    Filed: October 11, 2023
    Date of Patent: June 24, 2025
    Assignees: Beijing Zitiao Network Technology Co., Ltd., Lemon Inc.
    Inventors: Yang Chen, Eddy Jung, Lei Xu, Yibing Zhu