Patents by Inventor Ke Xu

Ke 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: 11797547
    Abstract: Methods, apparatuses, and systems for intention based search techniques are described herein. An example method comprises receiving data indicative of an intent of a user to perform an action via at least one application, the data comprising a description of the action that is input via a client device application on a client device, identifying, by the computing device, the at least one application based on a comparison of the description of the action and one or more records, the one or more records being indicative of prior intents of one or more users to perform actions and indicative of at least one selection by the one or more users to perform the actions with a selected application, and providing, by the computing device, output to the client device to enable performance of the action via the at least one application.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: October 24, 2023
    Inventors: Shutian Yao, Ke Xu, Zongpeng Qiao
  • Patent number: 11797465
    Abstract: In accordance with one disclosed method, a client device may be caused to present a user interface for an application, the user interface enabling selective access to a plurality of resources via the client device. A state of a peripheral device that is connectable to the client device may be determined and, based at least in part on the state of the peripheral device, at least a first resource, from among the plurality of resources, may be identified with which the peripheral device can interact. Based at least in part on the identifying of the first resource, the user interface may be caused to include at least a first selectable user interface element that, when selected, causes the client device to access to the first resource so as to enable the peripheral device to interact with the first resource.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: October 24, 2023
    Inventors: Ze Chen, Ke Xu, Xiao Zhang, Zongpeng Qiao
  • Publication number: 20230327393
    Abstract: The present disclosure provides a gallium nitride substrate, where the gallium nitride substrate has a surface having a diameter not less than 50 mm; nine circular regions having a diameter not greater than 1 mm are taken on a surface of the gallium nitride substrate; threading dislocation densities and threading dislocation tilt angles are calculated at the nine circular regions using a multi-photon excitation photoluminescence spectrum; an average value of products of the threading dislocation densities in the nine circular regions and tangent values of the threading dislocation tilt angles is not greater than 1E6 cm?2; and a quotient of a difference between a maximum value and a minimum value of the products of the threading dislocation densities in the nine circular regions and the tangent values of the threading dislocation tilt angles divided by the average value is not greater than 50%.
    Type: Application
    Filed: August 13, 2021
    Publication date: October 12, 2023
    Applicant: SUZHOU NANOWIN SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Yu XU, Jianfeng WANG, Ke XU
  • Patent number: 11779958
    Abstract: An ultrasonic stepping motor device for generating ultra-fine single droplet includes a valve housing, a valve core, and a spring. The valve core and the spring are installed inside the valve housing, and the valve core abuts against a liquid inlet of the valve housing under an elastic force of the spring. The valve housing is connected with a injector through a catheter, and the catheter is driven for linear operation by the inverse piezoelectric effect of piezoelectric ceramics through an ultrasonic linear motor. A right end of the catheter is equipped with a rubber piston, and the rubber piston is arranged in a cavity of the injector and matched with the injector. Since the piezoelectric vibrator driven catheter can produce nano feed length, and the volume of droplets overflowed each time can reach micron level, which can meet the requirements of producing micro droplets.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: October 10, 2023
    Assignee: JIANGSU UNIVERSITY
    Inventors: Jianmin Gao, Ke Xu
  • Publication number: 20230316741
    Abstract: A computer-implemented method comprises receiving an image captured by a camera on an unmanned aerial vehicle (UAV). The image depicts an environment below the UAV. A feature mask associated with the image is generated via a machine learning model that is trained to identify and semantically label pixels representing the environment depicted in the image. One or more reference tiles associated with the environment are retrieved. The reference tiles are associated with particular geographic locations and specify semantically labeled pixels representing the geographic locations. The semantically labeled pixels of the feature mask are correlated with the semantically labeled pixels of at least one of the one or more reference tiles to determine the geographic location of the UAV in the environment.
    Type: Application
    Filed: March 31, 2022
    Publication date: October 5, 2023
    Inventors: Ali Shoeb, Kyle Kakligian, Damien Jourdan, Michael Zhong, Ke Xu, Jeremie Gabor
  • Publication number: 20230312378
    Abstract: The present disclosure discloses a method for removing chlorinated hydrocarbons in groundwater through step-by-step electrocatalytic dechlorination degradation. A double-chamber electrolyzer reactor is used to carry out step-by-step electrocatalytic dechlorination degradation to remove chlorinated hydrocarbons in groundwater. The double-chamber electrolyzer reactor comprises a cathode chamber, a proton exchange membrane, an anode chamber and an intermediate processing unit, wherein the cathode chamber is separated from the anode chamber through the proton exchange membrane, and the intermediate processing unit is connected between the cathode chamber and the anode chamber through a cathode chamber water outlet, an anode chamber water inlet and pipelines.
    Type: Application
    Filed: March 9, 2023
    Publication date: October 5, 2023
    Applicant: Nanjing University
    Inventors: Ke XU, Zhengqing LIU, Sijia MA, Hongqiang REN
  • Publication number: 20230300160
    Abstract: A method for detecting hidden malicious traffic based on a traffic interaction map and a device are provided. The method includes monitoring traffic passing through a gateway by a detection system operating in the gateway; obtaining a data packet granularity feature by performing feature extraction of granularity of a data packet on the traffic monitored; constructing a traffic interaction map according to the data packet granularity feature to represent a long-term interaction mode of the traffic by a graph structure of the traffic interaction map; and detecting an abnormal local structure on the traffic interaction map by a detection algorithm of graph learning based on the traffic interaction map, and marking the abnormal local structure as the corresponding hidden malicious traffic.
    Type: Application
    Filed: February 24, 2023
    Publication date: September 21, 2023
    Inventors: Ke XU, Chuanpu FU, Qi LI
  • Patent number: 11756435
    Abstract: An airspace network optimization method based on a flight normality target is capable of comprehensively considering spatial and temporal distribution of national air traffic demands, a service capability of an airspace network and a capacity increase limit of each airspace unit according to the flight normality optimization target on the basis of carrying out pre-analysis on a flight operation efficiency under a current airspace service capability, to position a key problem airspace and generate a capacity expansion suggestion of the related airspace; and aims at improving the flight operation efficiency by expanding the airspace service capability, and providing technical support for a user to carry out analysis and optimization work of national airspace network problems at a strategic level.
    Type: Grant
    Filed: August 11, 2022
    Date of Patent: September 12, 2023
    Assignee: THE 28TH RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION
    Inventors: Feifei Chen, Mingwei Zhang, Hui Ding, Ming Tong, Xiaozhu Shi, Shan'e Xu, Jibo Huang, Yang Zhang, Fan Bao, Ke Xu, Jing Tian, Wenyi Tang, Zeyuan Liu, Qingqing Tan, Weiyu Jiang
  • Publication number: 20230270674
    Abstract: The present disclosure relates compartmental administration of modified extracellular vesicles, e.g., exosomes. In some aspects, the extracellular vesicle, e.g., exosome, comprises a biologically active molecule and a targeting moiety.
    Type: Application
    Filed: March 15, 2021
    Publication date: August 31, 2023
    Applicant: Codiak BioSciences, Inc.
    Inventors: Ajay VERMA, Wei ZHANG, Ke XU, Shailendra PATEL
  • Publication number: 20230269395
    Abstract: The present application provides a video processing method, a device, and a storage medium. The method includes: coding and decoding an original video to obtain a mixed resolution video, where the mixed resolution video includes a first resolution frame and a second resolution frame each corresponding to a key frame, and a third resolution frame corresponding to a non-key frame, where the first resolution frame has a resolution higher than a resolution of the second resolution frame or a resolution of the third resolution frame; and amplifying, according to the first resolution frame and the second resolution frame, the third resolution frame corresponding to the non-key frame to output an amplified video, where the amplified video includes the first resolution frame corresponding to the key frame, and an amplified target frame corresponding to the non-key frame.
    Type: Application
    Filed: June 1, 2021
    Publication date: August 24, 2023
    Inventors: Wei YANG, Ke XU, Dehui KONG, Jianjun SONG, Fang ZHU
  • Publication number: 20230263885
    Abstract: The present disclosure relates to extracellular vesicles (EVs), e.g., exosomes, comprising a payload (e.g., an antigen, adjuvant, and/or immune modulator) and/or a targeting moiety. Also provided herein are methods for producing the EVs (e.g., exosomes) and methods for using the EVs (e.g., exosomes) to treat and/or prevent diseases or disorders, e.g., cancer, graft-versus-host disease (GvHD), autoimmune disease, infectious diseases, or fibrotic diseases.
    Type: Application
    Filed: October 26, 2022
    Publication date: August 24, 2023
    Applicant: Codiak BioSciences, Inc.
    Inventors: Raymond J. MONIZ, Russell E. MCCONNELL, Nikki ROSS, Christine MCCOY, Timothy J. SOOS, Ke XU
  • Publication number: 20230259317
    Abstract: One disclosed method involves a computing system determining a keyword of interest for an online meeting being presented via a user interface, determining that content of the online meeting corresponds to the keyword of interest, and causing, in response to the content of the online meeting corresponding to the keyword of interest, the user interface to output an indication that the content of the online meeting being presented is potentially of interest. Another disclosed method involves a computing system determining data indicative of a number of client devices, from a plurality of client devices participating in an online meeting, for which a user interface for the online meeting is presented in an active window, and causing, based at least in part on the data, a first client device, from the plurality of client devices, to output an indication that content of the online meeting being presented is potentially of interest.
    Type: Application
    Filed: February 24, 2022
    Publication date: August 17, 2023
    Inventors: Wenshuang Zhang, Ke Xu, Xuan Liu, Chunhui Wu
  • Publication number: 20230253780
    Abstract: Systems and methods are provided for a battery management system (BMS) having a protection circuit. In one example, a vehicle battery system may include the BMS, the BMS including a cutoff circuit coupled to a short-circuit protection circuit, and a battery pack, wherein the short-circuit protection circuit may include a diode array, cathodes of the diode array being coupled to a positive terminal post of the battery pack and anodes of the diode array being coupled to a negative terminal post of the battery pack. In some examples, the cutoff circuit may further be coupled to a reverse bias protection circuit including a switchable current path arranged between a control input of the cutoff circuit and an output of the cutoff circuit. In this way, the vehicle battery system may be protected from unexpected voltage conditions via the BMS redirecting and dissipating excess current away from the cutoff circuit.
    Type: Application
    Filed: April 18, 2023
    Publication date: August 10, 2023
    Inventors: Yue Li, Steve Gierlach, Weiwei Lin, Brian Large, Jiaping Zhang, Ke Xu
  • Publication number: 20230253781
    Abstract: Systems and methods are provided for a battery management system (BMS) having a protection circuit. In one example, a vehicle battery system may include the BMS, the BMS including a cutoff circuit coupled to a short-circuit protection circuit, and a battery pack, wherein the short-circuit protection circuit may include a diode array, cathodes of the diode array being coupled to a positive terminal post of the battery pack and anodes of the diode array being coupled to a negative terminal post of the battery pack. In some examples, the cutoff circuit may further be coupled to a reverse bias protection circuit including a switchable current path arranged between a control input of the cutoff circuit and an output of the cutoff circuit. In this way, the vehicle battery system may be protected from unexpected voltage conditions via the BMS redirecting and dissipating excess current away from the cutoff circuit.
    Type: Application
    Filed: April 18, 2023
    Publication date: August 10, 2023
    Inventors: Yue Li, Steve Gierlach, Weiwei Lin, Brian Large, Jiaping Zhang, Ke Xu
  • Publication number: 20230230206
    Abstract: The present application relates to the field of image processing, and provides an image denoising method and apparatus, an electronic device and a storage medium. The image denoising method includes: acquiring an image to be processed, and inputting the image to be processed into an image denoising model to acquire a denoised image, wherein the image denoising model is a model formed by combining a U-shaped network, a residual network and a dense network.
    Type: Application
    Filed: April 22, 2021
    Publication date: July 20, 2023
    Inventors: Jisong AI, Ke XU, Dehui KONG, Ning WANG, Xin LIU, Jing YOU, Fang ZHU
  • Publication number: 20230224357
    Abstract: In one disclosed method, a computing system receives a first request to download a first file to a client device. The computing system further sends, based at least in part on the first request, a first digest of the first file to the client device to enable the client device to compare the first digest with at least a second digest of a second file stored locally at the client device. The computing system further receives, after sending the first digest to the client device, a second request to refrain from downloading the first file to the client device.
    Type: Application
    Filed: January 19, 2022
    Publication date: July 13, 2023
    Inventors: Ke Xu, Jia Yin, Jessica Li, Jie Zhuang
  • Publication number: 20230220068
    Abstract: The present disclosure relates extracellular vesicles, e.g., exosomes, comprising an antigen-binding moeity, e.g., a single-domain antigen-binding moeity, e.g., a vNAR, a VHH, or a fragment thereof, that specifically binds transferrin receptor, and methods of making and using the same.
    Type: Application
    Filed: June 7, 2021
    Publication date: July 13, 2023
    Applicant: Codiak BioSciences, Inc.
    Inventors: Ajay VERMA, Leonid GAYDUKOV, Ke XU, Kevin P. DOOLEY, Jonathan FINN
  • Patent number: 11700048
    Abstract: Embodiments of the present disclosure provide a beamforming method and device based on phase shifter switching control, and a system. The method includes: acquiring a channel vector of a channel of each of low-load terminals; acquiring, based on the channel vector, contribution degrees of phase shifters corresponding to the channel; sequentially changing a connected state of each of the phase shifters from closing to opening based on the contribution degrees of the phase shifters corresponding to the channel, calculating a to-be-processed signal-to-interference-plus-noise ratio (SINR) of the low-load terminal after changing the connected state of the phase shifter once, stopping to change the connected state of the phase shifter if the to-be-processed SINR meets a preset condition, and changing the connected state of the phase shifter meeting the preset condition to the closing.
    Type: Grant
    Filed: August 18, 2022
    Date of Patent: July 11, 2023
    Assignee: HARBIN INSTITUTE OF TECHNOLOGY, SHENZHEN
    Inventors: Fu-Chun Zheng, Ke Xu
  • Patent number: 11694556
    Abstract: A time-space conversion method of flight sequencing information aims to solve a problem that a flight sequencing suggestion generated by an arrival management system has poor effect in practical application due to abstract characteristics, comprising: generating a sequencing time and a delay suggestion of a flight in each key point in a terminal area and each runway by using a flight sequencing technology; predicting a flight status of the flight according to a current position and 4D trajectory information of the flight, and filtering a delay-consumed flight segment, and on that basis, generating a flight segment delay allocation strategy with reference to an aircraft performance and sequencing information, and obtaining a flight segment delay allocation result; and generating a visual spatial position reference target according to the flight segment delay allocation result and an operation deviation limit.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: July 4, 2023
    Assignee: THE 28TH RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION
    Inventors: Feifei Chen, Ke Xu, Yibo Ding, Mingwei Zhang, Hui Ding, Ming Tong, Xiaozhu Shi, Yang Zhang, Jibo Huang, Wenyi Tang, Zeyuan Liu, Qingqing Tan, Weiyu Jiang
  • Publication number: 20230196721
    Abstract: A low-illuminance video processing method, a low-illuminance video processing device and a storage medium are disclosed. The method includes: acquiring a same number of preceding frame images and subsequent frame images corresponding to a current video frame of a low-illuminance video to obtain a frame image set corresponding to the current video frame, and performing traversal on the low-illuminance video to obtain frame image sets corresponding to all video frames; after performing image alignment on all frame images in the frame image sets corresponding to all video frames, inputting the frame image sets into a pre-trained low-illuminance image enhancement model to obtain enhanced frame images; and generating an enhanced video based on the enhanced frame images.
    Type: Application
    Filed: June 9, 2021
    Publication date: June 22, 2023
    Inventors: Cong REN, Ke XU, Dehui KONG, Jing YOU, Xin LIU, Fang ZHU