Patents by Inventor Lei Han

Lei Han 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: 20240022513
    Abstract: A communication method includes a first network device that receives a service packet from a first endpoint device, where a destination media access control (MAC) address of the service packet is a specific local MAC address of a second endpoint device, the specific local MAC address includes an indication prefix and location information, the indication prefix indicates that the specific local MAC address includes the location information, and the location information indicates an access location of an endpoint device in a network. The first network device determines an egress port from a preset routing table based on the location information in the specific local MAC address of the second endpoint device, and sends the service packet through the egress port, where the routing table includes the location information and the egress port corresponding to the location information.
    Type: Application
    Filed: September 22, 2023
    Publication date: January 18, 2024
    Inventors: Junjie Niu, Peng Dong, Xiaofei Xu, Lei Han
  • Publication number: 20240020111
    Abstract: Embodiments of this application disclose a data processing method and a related device. One example method includes: A control device receives a first data transmission request sent by a diagnostic device, where the first data transmission request is used to request the control device to receive an upgrade file, the first data transmission request carries a first memory address corresponding to the upgrade file, and the upgrade file is used to upgrade the control device. The control device obtains a first file path corresponding to the first memory address, receives the upgrade file sent by the diagnostic device, and stores the upgrade file into a file to which the first file path points.
    Type: Application
    Filed: July 26, 2023
    Publication date: January 18, 2024
    Inventors: Lei HAN, Xingwang WU
  • Publication number: 20240022497
    Abstract: This application provides a collective communication method and a communication apparatus. The method includes: A first terminal device receives at least one second packet from a first network device, where the second packet includes information about a first process and information about a network device corresponding to the first process, the first process is used to execute a first task, and the information about the network device corresponding to the first process is information about a network device to which a terminal device including the first process belongs. The first terminal device determines a third packet based on the at least one second packet, where the third packet includes information about a target network device and information about all first processes that correspond to the target network device and that execute the first task.
    Type: Application
    Filed: September 28, 2023
    Publication date: January 18, 2024
    Inventors: Tao Wu, Hewen Zheng, Lei Han, Jian Yan, Youjun Jiang, Xiangyu Gong
  • Patent number: 11870708
    Abstract: A congestion control method and an apparatus are disclosed. The method includes: after a sending device generates an unscheduled data packet of a first flow, if it is determined, based on an unscheduled packet send window shared by all flows, that the unscheduled data packet meets a sending condition, determining whether to request to add a quota for at least one of the unscheduled packet send window and a scheduled packet send window corresponding to the first flow; and if it is determined that the quota is requested to be added for the at least one of the unscheduled packet send window and the scheduled packet send window corresponding to the first flow, setting indication information in the unscheduled data packet, and sending, to a receiving device, the unscheduled data packet in which the indication information is set.
    Type: Grant
    Filed: March 17, 2023
    Date of Patent: January 9, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Chen Tian, Lei Han, Kexin Liu, Wenhao Sun, Ke Meng, Yonghui Xu, Long Yan
  • Publication number: 20230406320
    Abstract: A method for detecting a surface gradient of an unstructured road based on Lidar includes: obtaining an environmental point cloud of a target region by using a Lidar, and filtering out a point cloud of a non-surface region to obtain a point cloud of a surface region; calculating a normal vector of the point cloud of the surface region, and obtaining an included angle of the surface of each region relative to a coordinate system of the Lidar; and obtaining pitching angle information of a vehicle at this time from a vehicle-mounted inertial measurement unit (IMU), and correcting the included angle with the pitching angle information to obtain the gradient of the surface of each region.
    Type: Application
    Filed: February 15, 2023
    Publication date: December 21, 2023
    Inventors: Xudong GUO, Yuxiao LU, Jie WANG, Lei HAN, Haijie WU, Zhao LIU
  • Patent number: 11843336
    Abstract: Disclosed is a circuit for shifting a fixed ground level to a floating ground level in a motor drive system, including a floating ground high level line, a floating ground output level line, a floating ground low level line, a normal input level line, and a normal ground line that are used for characterizing an application detail. The circuit includes a controlled switching current source, a first upper current rectifier, a second upper current rectifier, a lower current rectifier, and an amplifying and shaping circuit that are integrated on a same substrate.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: December 12, 2023
    Assignee: Hefei Aichuangwei Electronic Technology Co., Ltd.
    Inventors: Jun Pan, Lixiang Xu, Lixiang Wen, Lei Qiu, Dianwu Li, Wei Wang, Lei Han, Ke Wang
  • Publication number: 20230391686
    Abstract: A process and a device for continuous flow side-chain alkylation which relate to the technical field of organic synthesis. In this process and the device for continuous flow side-chain alkylation, an ibuprofen raw material is prepared with alkylbenzene as a raw material. This raw material alkylbenzene is easily available and has a low cost, and is suitable for scale-up production. Moreover, an entire preparation process adopts continuous chemical synthesis, and a reaction time of each stage can be precisely controlled, which is beneficial to control a total reaction time and reduce an amount of impurities produced. In this way, a purity and a yield of the ibuprofen raw material are improved. In summary, a continuous synthesis method for side-chain alkylation of alkylbenzene provided by the present disclosure shows a low cost and a high yield.
    Type: Application
    Filed: August 2, 2023
    Publication date: December 7, 2023
    Applicant: Qingdao University of Science and Technology
    Inventors: Peizhe CUI, Jianguang QI, Wenhui XU, Yinglong WANG, Zhaoyou ZHU, Kaiguang WANG, Xin LI, Fanqing MENG, Limei ZHONG, Shuli YIN, Lei HAN, Jianbo JIA, Zhonghui ZHENG
  • Publication number: 20230377034
    Abstract: A provider institution computing system includes an account management circuit that is configured to perform operations including: associating a first expense with a first envelope of a plurality of envelopes and a second expense with a second envelope of the plurality of envelopes; generating a first payment token and a second payment token; storing the first payment token and the second payment token in the accounts database; and mapping the first payment token and the second payment token to a first account, whereby the first payment token is assigned to the first envelope and the second payment token is assigned to the second envelope. The first payment token is configured to facilitate a payment from the first account via the first envelope to the first payee and the second payment token is configured to facilitate a payment from the first account via the second envelope to the second payee.
    Type: Application
    Filed: August 1, 2023
    Publication date: November 23, 2023
    Applicant: Wells Fargo Bank, N.A.
    Inventors: Deborah M. Ball, Susanne Carr, Stephen M. Ellis, Lei Han, Margaret Mangot, Stanislav Roumiantsev, Abhijit Shetti, Brad J. Shoff
  • Patent number: 11824476
    Abstract: Disclosed is a circuit for converting a temperature change amount into a voltage change amount in a motor drive system, including a positive temperature change rate voltage generation module, a circuit bias module, and a temperature detection module that are integrated on a same substrate. An external power supply voltage is processed by the positive temperature change rate voltage generation module and the circuit bias module, and then inputted to the temperature detection module. The temperature detection module detects in real time the temperature change amount in the motor drive system, convert the temperature change amount into the voltage change amount, and transfer the voltage change amount to the circuit bias module, to allow the circuit bias module to output the voltage change amount. In this way, the conversion from the temperature change amount into the voltage change amount is realized.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: November 21, 2023
    Assignee: Hefei Aichuangwei Electronic Technology Co., Ltd.
    Inventors: Jun Pan, Lixiang Xu, Lixiang Wen, Lei Qiu, Dianwu Li, Wei Wang, Lei Han, Ke Wang
  • Patent number: 11822353
    Abstract: A method includes generating one or more calibration instructions for calibrating one or more sensors coupled to a movable object and providing at least some of the one or more calibration instructions to a user interface. The at least some of the one or more calibration instructions includes human-readable user instructions for moving the movable object along a predetermined pattern. The method further includes calibrating one or more sensor parameters for the one or more sensors based at least in part on sensor data collected while the movable object moves along the predetermined pattern.
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: November 21, 2023
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: You Zhou, Lei Han, Jianzhao Cai
  • Publication number: 20230352192
    Abstract: A method and apparatus for constructing a drug knowledge graph are provided. The method may include: identifying entities in a drug text; replacing medical key entities among the entities with character strings that conform to a preset rule, to obtain a replaced text; restoring the character strings in a word segmentation result, determined based on the replaced text, to the medical key entities replaced by the character strings; forming a linear entity relationship between the entities based on the entities; and generating a drug knowledge graph according to a parsing result obtained by syntactically parsing the linear entity relationship.
    Type: Application
    Filed: April 22, 2021
    Publication date: November 2, 2023
    Inventors: Shuai YANG, Pei XIE, Hao WEN, Lei HAN, Ya ZHANG
  • Publication number: 20230347330
    Abstract: A ZSM-5/? core-shell molecular sieve has a core composed of at least two crystal grains of ZSM-5 molecular sieve and a shell composed of a plurality of crystal grains of ? molecular sieve. The ZSM-5 molecular sieve grains has an average grain size of 0.05-15 ?m. The core-shell molecular sieve has a shell coverage of 50-100%, a shell thickness of 10-2000 nm, and an average grain size of the ? molecular sieve grains in the shell of 10-500 nm. A ratio of a height of a diffraction peak at 2?=22.4° to a height of a diffraction peak at 2?=23.1° in an X-ray diffraction pattern of the ZSM-5/? core-shell molecular sieve is 0.1-10:1.
    Type: Application
    Filed: June 24, 2021
    Publication date: November 2, 2023
    Inventors: Lei HAN, Wei LIN, Peng WANG, Haitao SONG, Lixia WANG, Xiang ZHOU, Liuzhou ZHAO, Xueguo ZHENG
  • Publication number: 20230345233
    Abstract: An information reporting method includes receiving, by a terminal device, a capability inquiry message from a first network device, and obtaining first release information of a second network device. The information reporting method also includes determining, by the terminal device, first capability information of the terminal device based on the first release information. The information reporting method further includes sending, by the terminal device, the first capability information to the first network device.
    Type: Application
    Filed: June 29, 2023
    Publication date: October 26, 2023
    Inventors: Junren CHANG, Lingping WANG, Lei HAN
  • Publication number: 20230330648
    Abstract: A phosphorus- and metal-containing core-shell molecular sieve has a core composed of a ZSM-5 molecular sieve, and a shell composed of a ? molecular sieve. The phosphorus- and metal-containing core-shell molecular sieve has a phosphorus content, calculated as P2O5, of 1-10 wt %, and a metal content, calculated as metal oxide, of 0.1-10 wt %, based on the dry weight of the phosphorus- and metal-containing core-shell molecular sieve. It shows an 27Al MAS NMR with a ratio of the area of a resonance signal peak at a chemical shift of 39±3 ppm to the area of a resonance signal peak at a chemical shift of 54±3 ppm of 0.01-?:1.
    Type: Application
    Filed: June 24, 2021
    Publication date: October 19, 2023
    Inventors: Wei LIN, Peng WANG, Lei HAN, Haitao SONG, Xiang ZHOU, Lixia WANG, Zhenbo WANG, Yaoqing GUO
  • Patent number: 11785008
    Abstract: Disclosed are systems and methods for passively authenticating users of a native application running on a mobile communications device. The user may be applying for a service, product, access, etc. from a provider computing system. A unique device identifier of the device may be acquired and provided to a first computing system. A mobile telephone number associated with the device may be received at the device. User information may be accepted from the user via a user interface of the device for entry into a set of fields. The mobile telephone number may be verified by determining, via a second computing system that is different from the first computing system, that the mobile telephone number is associated with the user information. The service/product/access for the user may be approved in response to verification of the mobile telephone number. The user may be authenticated without challenge questions.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: October 10, 2023
    Assignee: Wells Fargo Bank, N.A.
    Inventors: Ryan S. Alexander, Lei Han, Prafullata Diwate
  • Patent number: 11759759
    Abstract: Described herein is a process for producing perfume- or flavor-containing microcapsules with improved deposition of encapsulated actives on targeted surfaces such as fiber, hair and skin, which can be used in home or personal care products. Also described herein are microcapsules obtainable by such a process and consumer products including these microcapsules.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: September 19, 2023
    Assignee: FIRMENICH SA
    Inventors: Lei Shi, Lahoussine Ouali, Lei Han
  • Patent number: 11748314
    Abstract: Techniques for data replication involve: in response to a first source state machine associated with a source file system being booted up, booting up a second source state machine associated with the source file system, the first source state machine performing a first operation for resizing a first storage area of data for replication from the source file system; transmitting a resizing message from the second source state machine to a destination file system, to enable the destination file system to perform a second operation for resizing a second storage area for storing the data to be replicated into the destination file system; and in response to the first operation and the second operation being successfully performed, enabling the data for replication from the source file system to be replicated into the destination file system.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: September 5, 2023
    Assignee: EMC IP Holding Company LLC
    Inventors: Qing Hua Ling, Xin Zhong, Yangfeng Chen, Yue Yang, Jianbao Li, Lei Han, Yuan Gu, Yan Shao
  • Publication number: 20230250469
    Abstract: The present disclosure provides a homogeneous detection method for continuous detection of a miRNA by a metal-organic framework (MOF)-based nanozyme. The method includes the following steps: step 1, conducting a duplex-specific nuclease (DSN)-assisted signal amplification strategy: in order to form a hairpin structure, heating a hairpin DNA to 95° C. for 5 min, and then slowly cooling to a room temperature; and step 2, conducting a flow analysis: conducting the flow analysis on a target using a flow injection-batch method, and recording a differential pulse voltammetry (DPV) response of a biosensor in a batch mode; in a flow mode, introducing a DSN-assisted signal amplification product into an analytical unit, and conducting incubation at 30° C. to 40° C.
    Type: Application
    Filed: October 3, 2022
    Publication date: August 10, 2023
    Applicant: Qingdao Agricultural University
    Inventors: Lei HAN, Zhen WANG, Xiuzhong WANG, Yucui ZHANG
  • Publication number: 20230247118
    Abstract: A method implemented by a communication apparatus for processing a packet. The method includes obtaining, by the communication apparatus, a first packet, where the first packet includes a first-layer header. The first-layer header includes an identification field used to identify whether the first-layer header of the first packet includes information in a second-layer header. The communication apparatus then processes the first packet, which may include sending the first packet, forwarding the first packet, scheduling or marking the first packet, or the like.
    Type: Application
    Filed: January 30, 2023
    Publication date: August 3, 2023
    Inventors: Hewen Zheng, Xiaojun Zhang, Lei Han, Xiaofei Xu
  • Patent number: D992495
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: July 18, 2023
    Assignee: QINGDAO DOUBLESTAR TIRE INDUSTRIAL CO., LTD. (CN)
    Inventors: Jun Wang, Lihua Ma, Lei Han, Ying Wei, Feng Zhang, Hongxia Wang, Xiaohong Li, Guiqin Sun, Zhen Wang