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: 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: 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
  • 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
  • Patent number: 12235972
    Abstract: The disclosure provides a security analysis method and system based on protocol state, which relates to the technical field of protocol security protection. The method includes the following: a node traversal table is built, the node traversal table is scanned and analyzed according to the protocol trigger sequence rule, a first security evaluation factor of a protocol stack is determined, and a second security evaluation factor of each protocol is determined based on protocol normal application rule, and the trustworthiness degree of the second security factor is determined based on the first security factor, and the second security factor is revised based on the trustworthiness degree, and the security state of the protocol is determined according to the revised second security factor, thus the analysis of the protocol state is realized, and the security of the protocol can be accurately determined.
    Type: Grant
    Filed: July 9, 2024
    Date of Patent: February 25, 2025
    Assignee: HUANENG INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Ziqiang Wen, Hongjian Qi, Shuo Han, Chenghua Qu, Yufei Wang, Lei Xu, Zhongying Pan, Sheng Ye, Shouhui Xin, Wei Li, Yujie Liu, Qiang Zhang, Chengfeng Song, Hongwei Zhang, Yanfei Xu, Xushuai Qin, Xunan Deng
  • Publication number: 20250057600
    Abstract: A method of modeling anatomic deformation comprises receiving a reference three dimensional model of a branched anatomical formation in a reference state. The method further comprises applying a three dimensional deformation field to the reference three dimensional model to create a deformed three dimensional model of a deformed state of the branched anatomical formation and dynamically displaying an image of the deformed three dimensional model of the deformed state of the branched anatomical formation.
    Type: Application
    Filed: November 1, 2024
    Publication date: February 20, 2025
    Inventors: Prashant Chopra, Vincent Duindam, Lei Xu, Tao Zhao
  • Patent number: 12221738
    Abstract: An operation control method and system for a clothing treatment device having a drum and a motor is provided. Load inertia of the drum and a fluctuation parameter of the motor are obtained. Load eccentric mass of the clothing treatment device is obtained based on the load inertia, the fluctuation parameter, and predetermined relationship data that is obtained based on pre-stored load inertia, torque fluctuation and load eccentric mass. The fluctuation parameter can be a torque fluctuation parameter or a rotation speed fluctuation parameter. The clothing treatment device can be controlled according to the load eccentric mass to optimize washing operations. For example, clothing and/or inlet water amount can be timely adjusted according to the calculated load eccentric mass. Thus, the clothing treatment device is prevented from producing significant noise during operations, and the service life of the clothing treatment device can be prolonged.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: February 11, 2025
    Assignees: GUANGDONG WELLING MOTOR MANUFACTURING CO., LTD., MIDEA WELLING MOTOR TECHNOLOGY (SHANGHAI) CO., LTD.
    Inventors: Lei Xu, Xiangnan Qin, Junyong Fu, Xiaoan Zhao
  • Patent number: 12223699
    Abstract: Methods, systems, and computer-readable storage media for a multimodal machine learning image and text combined search method. One example method includes processing items that each have an associated image and a textual description. A first image feature vector is generated by processing a first image using a first machine learning model. A first textual feature vector is generated by processing a first textual description using a second machine learning model. The first image feature vector and the first textual feature vector are combined to generate a first combined feature vector for a first item. Similarity lists of similar items are generated for the first item based on similarities between the first image feature vector, the first text feature vector, the first combined feature vector and respective corresponding vectors of other items. The similarity lists for the first item are combined to generate a combined similarity list for the first item.
    Type: Grant
    Filed: May 10, 2022
    Date of Patent: February 11, 2025
    Assignee: SAP SE
    Inventors: Lei Xu, Deng Feng Wan
  • Patent number: 12223296
    Abstract: The present application relates to the technical field of computers, and discloses a micro-front-end-based page internationalization configuration method and apparatus, a device and a medium. The method includes: creating an internationalized page in a micro-front-end main application, and configuring the internationalized page to obtain a configured internationalized page; persisting data in the configured internationalized page; and reading the data and transmitting the data to at least one micro-front-end sub-application for any one of the micro-front-end sub-applications to perform page translation according to the data.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: February 11, 2025
    Assignee: SUZHOU METABRAIN INTELLIGENT TECHNOLOGY CO., LTD.
    Inventor: Lei Xu
  • Publication number: 20250045417
    Abstract: The disclosure provides a security analysis method and system based on protocol state, which relates to the technical field of protocol security protection. The method includes the following: a node traversal table is built, the node traversal table is scanned and analyzed according to the protocol trigger sequence rule, a first security evaluation factor of a protocol stack is determined, and a second security evaluation factor of each protocol is determined based on protocol normal application rule, and the trustworthiness degree of the second security factor is determined based on the first security factor, and the second security factor is revised based on the trustworthiness degree, and the security state of the protocol is determined according to the revised second security factor, thus the analysis of the protocol state is realized, and the security of the protocol can be accurately determined.
    Type: Application
    Filed: July 9, 2024
    Publication date: February 6, 2025
    Applicant: HUANENG INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Ziqiang WEN, Hongjian QI, Shuo HAN, Chenghua QU, Yufei WANG, Lei XU, Zhongying PAN, Sheng YE, Shouhui XIN, Wei LI, Yujie LIU, Qiang ZHANG, Chengfeng SONG, Hongwei ZHANG, Yanfei XU, Xushuai QIN, Xunan DENG
  • Publication number: 20250029612
    Abstract: Transcript generation as part of automatic speech recognition may be guided using section types. Audio data is received for transcription. An initial transcript of the audio data may be generated and evaluated to determine a section type for the audio data. The section type may then be used to focus generation of a second version of the transcript on one speaker over another speaker.
    Type: Application
    Filed: July 20, 2023
    Publication date: January 23, 2025
    Applicant: Amazon Technologies, Inc.
    Inventors: Lei Xu, Aparna Elangovan, Rohit Paturi, Sundararajan Srinivasan, Sravan BAbu Bodapati, Katrin Kirchoff, Sarthak Handa
  • Publication number: 20250030714
    Abstract: An in-kernel virtual machine (“VM”) instantiated in the kernel space of a physical or virtual machine (“machine”) attaches code hooks at a network interface of the machine. The code hooks redirect network traffic from the network interface to a module that generates feature values at the kernel space from protocol data units of network traffic received by the network interface. The machine passes the feature values from kernel space to user space via zero-copy shared memory and a machine learning model in the user space obtains network traffic verdicts as outputs from inputting the feature values. The machine passes the verdicts from user space to kernel space via the zero-copy shared memory and the in-kernel VM performs corrective action based on malicious verdicts.
    Type: Application
    Filed: July 20, 2023
    Publication date: January 23, 2025
    Inventors: Lei Xu, Yang Ji, Yu Fu
  • Patent number: 12204392
    Abstract: The present disclosure provides an electronic device and a method for controlling data updates of the electronic device, the electronic device comprising: a control portion including a storage configured to store data and a controller configured to control data updates in the storage; a power supply portion; a power storage portion configured to be connected with the power supply portion, receive and store electric power of the power supply portion, and supply the electric power to the control portion; and a power supply detection portion configured to detect whether the power supply portion supplies power normally, the storage includes a first storage portion configured to store start-up data for electronic device start-up and a second storage portion configured to store running data for electronic device running after start-up; in the process of updating the start-up data of the first storage portion, if the power supply detection portion detects the power supply portion has a power supply abnormality, the
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: January 21, 2025
    Assignee: OMRON CORPORATION
    Inventors: Lei Xu, Yutao Wang, Liangyong Duan, Xianjie Guo
  • Patent number: 12199352
    Abstract: Provided are tuning circuit and communication device. The tuning circuit includes tuning switch, ground patch point, and at least two sets of patch units. Each set of patch units at least includes a first patch point and a second patch point; the tuning switch comprises a standard port and at least one conversion port, and each set of patch units is connected to the corresponding conversion port; a first end of a first patch point and a first end of a second patch point in the same set of patch units are connected to the same conversion port; second ends of first patch points in different patch units are respectively connected to different contact points of an antenna; the second ends of all the second patch points are connected to the ground; and both ends of the ground patch point are respectively connected to the standard port and the ground.
    Type: Grant
    Filed: May 10, 2022
    Date of Patent: January 14, 2025
    Assignee: ANHUI ANUKI TECHNOLOGIES CO., LTD.
    Inventors: Lei Xu, Chengjie Zuo, Jun He
  • Patent number: D1062764
    Type: Grant
    Filed: October 24, 2022
    Date of Patent: February 18, 2025
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Chenpeng Ding, Xiaoxiao Wan, Li Sheng, Lei Xu
  • Patent number: D1066703
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: March 11, 2025
    Inventor: Lei Xu