Patents by Inventor Kun Liu

Kun Liu 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: 20220292131
    Abstract: A method, apparatus and system for retrieving an image is provided, the method comprises: detecting, in response to receiving a query request comprising a target image, a target subject from the target image; extracting a subject feature from the target subject if a confidence level of a detection box of the detected target subject is greater than a first threshold, the subject feature comprising an identical feature, a similar feature and a category; performing matching on the subject feature of the target image and a subject feature of a candidate image pre-stored in a database, to obtain a similarity score and an identicalness score of the candidate image; and selecting, according to the similarity score and the identicalness score, a predetermined number of candidate images as a search result for output.
    Type: Application
    Filed: May 27, 2022
    Publication date: September 15, 2022
    Inventors: Ruibin BAI, Xiang WEI, Yipeng SUN, Kun YAO, Jingtuo LIU, Junyu HAN
  • Publication number: 20220293387
    Abstract: An electron source has an insulating base, a pair of conductive terminals, an insulating support member, a drift isolation member, an emitter-cathode, and one or more heating elements. The conductive terminals are exposed from a first surface of the insulating base. The insulating support member extends from the first surface of the insulating base. The drift isolation member is disposed at an end of the insulating support member remote from the insulating base. The emitter-cathode is coupled to the drift isolation member. The one or more heating elements are coupled to the conductive terminals and the drift isolation member. The combination of the drift isolation member with the insulating support member can prevent stress-induced drift from impacting position of the emitter-cathode, thereby improving the mechanical stability of the electron source.
    Type: Application
    Filed: March 14, 2022
    Publication date: September 15, 2022
    Applicant: FEI Company
    Inventors: Kun Liu, Gregory A. Schwind, Alan S. Bahm
  • Patent number: 11441876
    Abstract: A multilayered bullet resistant member, including a three-layered structure formed of a metal-ceramic crack arrest reflecting layer, a fiber-elastomer composite energy absorbing layer and a two-dimensional fabric blunt trauma protective layer sequentially overlapped with each other. The integration of performances of all the components guarantees high strength, hardness and good impact toughness of the bullet resistant member.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: September 13, 2022
    Assignee: JIANGNAN UNIVERSITY
    Inventors: Kejing Yu, Shen Li, Kun Qian, Diantang Zhang, Yang Xu, Qingsheng Liu, Feng Xu
  • Publication number: 20220286970
    Abstract: Provided are a data sending method and apparatus, a data receiving method and apparatus, a first node, and a second node. The data sending method includes that in the case of the inactive state or in the case where the radio resource control state is the idle state, data is sent to a second node through a first uplink channel; and that downlink control channels in a first search space are detected.
    Type: Application
    Filed: July 28, 2020
    Publication date: September 8, 2022
    Inventors: Kun LIU, Bo DAI, Zhaohua LU, Weiwei YANG, Huiying FANG, Luanjian BIAN, Youjun HU
  • Publication number: 20220287070
    Abstract: Provided are a scheduling indication method, a scheduling indication apparatus and a storage medium. The scheduling indication method includes: scheduling multiple shared channels through a single physical downlink control channel (PDCCH), where scheduling information is carried in the single PDCCH and is used to indicate scheduling for a process corresponding to each of the multiple shared channels, and the multiple shared channels include a physical uplink shared channel (PUSCH) and/or a physical downlink shared channel (PDSCH).
    Type: Application
    Filed: July 28, 2020
    Publication date: September 8, 2022
    Inventors: Youjun HU, Bo DAI, Weiwei YANG, Huiying FANG, Kun LIU, Luanjian BIAN
  • Publication number: 20220283021
    Abstract: The present invention discloses a differential COTDR distributed acoustic sensing device based on heterogeneous double-sideband chirped-pulses of the invention, comprising a light source (1), a 1×2 polarization-maintaining optical-fiber coupler (2), a dual Mach-Zehnder electro-optical modulator (3), an arbitrary waveform generator (4), a first low noise microwave amplifier (5), a second low noise microwave amplifier (6), an electro-optical modulator bias control panel (7), a 1×2 optical-fiber coupler (8), an erbium-doped optical-fiber amplifier (9), an optical-fiber filter (10), an optical-fiber circulator (11), a sensing optical fiber (12), a tricyclic polarization controller (13), a 2×2 optical-fiber coupler (14), a balanced photoelectric detector (15), a data acquisition card (16) and a processing unit (17).
    Type: Application
    Filed: January 22, 2020
    Publication date: September 8, 2022
    Inventors: Junfeng JIANG, Tiegen LIU, Zhe MA, Shuang WANG, Kun LIU, Zhenyang DING, Xuezhi ZHANG, Wenjie CHEN, Guanhua LIANG
  • Patent number: 11435181
    Abstract: A laser level system including a laser level, the laser level projecting at least one laser line. The system also includes a bracket on which the laser level is mounted and a battery pack. The bracket includes a battery pack receptacle into which the battery pack is removably coupled. The battery pack powers the laser level. The battery pack has a maximum initial battery pack voltage (measured without a workload) of at least 18 volts. The system also includes at least one electrical conductor which delivers power from the battery pack in the battery pack receptacle to the laser level.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: September 6, 2022
    Assignee: Stanley Black & Decker Inc.
    Inventors: Muhammad Bahauddin Khan, Kun Chang, Wei Chen, Jun Liu
  • Publication number: 20220273965
    Abstract: The present disclosure generally relates to a multi-leaf collimator. The multi-leaf collimator may include a set of leaves installed in a cavity, each leaf of the set of leaves having a length along a first direction. At least a portion of the set of leaves may extend beyond the cavity along the first direction. The set of leaves may be arranged along a second direction, the second direction being different from the first direction. A length of a target leaf of the set of leaves may be less than a length of a reference leaf of the set of leaves. The target leaf may be located in an end portion of the set of leaves along the second direction. The length of the set of leaves may conform to the shape of a maximum therapeutic radiation field.
    Type: Application
    Filed: May 16, 2022
    Publication date: September 1, 2022
    Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Jian LIU, Kun YANG, Jian ZHANG, Yanfang LIU, Cheng NI
  • Publication number: 20220276959
    Abstract: Various embodiments are generally directed to virtualized systems. A first guest memory page may be identified based at least in part on a number of accesses to a page table entry for the first guest memory page in a page table by an application executing in a virtual machine (VM) on the processor, the first guest memory page corresponding to a first byte-addressable memory. The execution of the VM and the application on the processor may be paused. The first guest memory page may be migrated to a target memory page in a second byte-addressable memory, the target memory page comprising one of a target host memory page and a target guest memory page, the second byte-addressable memory having an access speed faster than an access speed of the first byte-addressable memory.
    Type: Application
    Filed: March 15, 2022
    Publication date: September 1, 2022
    Applicant: Intel Corporation
    Inventors: Yao Zu DONG, Kun TIAN, Fengguang WU, Jingqi LIU
  • Publication number: 20220278572
    Abstract: A rotor sheet includes a sheet body. The sheet body includes a plurality of magnetic poles symmetrically distributed in a circumferential direction of the sheet body. Each magnetic pole includes one first magnet groove symmetrical about a D-axis center line, two second magnet grooves symmetrically distributed in an approximate V shape about the D-axis center line, two first air grooves symmetrically distributed on the outer sides of two ends of the first magnet groove, and one second air groove positioned between the ends of the two second magnet grooves near the side of the center of the sheet body. First magnetic bridges are formed between the first air grooves and an excircle of the sheet body, and second magnetic bridges are formed between the first magnet groove and the first air grooves; and third magnetic bridges are formed between the excircle of the sheet body.
    Type: Application
    Filed: June 4, 2021
    Publication date: September 1, 2022
    Applicant: Hefei JEE Power Systems Co.,Ltd.
    Inventors: Lei LIU, Renzhong ZHANG, Kun FAN
  • Publication number: 20220279013
    Abstract: Methods and apparatus for a flexible Deterministic Finite Automata (DFA) tokenizer for AI-based malicious traffic detection. A DFA compiler is used to process profiles, such as SQLi, HTML5 and XSS profiles, as well as user-defined profiles, to generate corresponding DFA transition tables. The DFA tokenizer includes a DFA engine that employs the DFA transition table(s) to generate token sequences derived from input strings. The token sequences are converted into feature vectors using a feature extraction engine, and the feature vectors are used for training a machine learning/Artificial Intelligence (AI) model configured to perform binary classification (benign or malicious). During run-time, strings are extracted from input received via a network and tokenized with the DFA tokenizer to generate token sequences that are converted into feature vectors. The feature vectors are then classified using the AI model to determine whether the input is benign or malicious.
    Type: Application
    Filed: May 13, 2022
    Publication date: September 1, 2022
    Inventors: Kun QIU, Hao CHANG, Ying WANG, Wenjun ZHU, Xiahui YU, Yingqi LIU, Baoqian LI, Weigang LI
  • Patent number: 11429902
    Abstract: Embodiments of the present disclosure relate to a method, device and computer program product for deploying a machine learning model. The method comprises: receiving an intermediate representation indicating processing of a machine learning model, learning parameters of the machine learning model, and a computing resource requirement for executing the machine learning model, the intermediate representation, the learning parameters, and the computing resource requirement being determined based on an original code of the machine learning model, the intermediate representation being irrelevant to a programming language of the original code; determining, at least based on the computing resource requirement, a computing node and a parameter storage node for executing the machine learning model; storing the learning parameters in the parameter storage node; and sending the intermediate representation to the computing node for executing the machine learning model with the stored learning parameters.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: August 30, 2022
    Assignee: EMC IP Holding Company LLC
    Inventors: Jinpeng Liu, Pengfei Wu, Junping Zhao, Kun Wang
  • Patent number: 11428620
    Abstract: A high-temperature and high-pressure microscopic visual flowing device and an experimental method are provided by the present disclosure, comprising a seepage simulation system, a micro-displacement and metering system connected to the seepage simulation system, and an image acquisition and analysis system; the seepage simulation system consists of a visual high-temperature and high-pressure kettle, a microscopic core model placed in the visual high-temperature and high-pressure kettle, and glass carriers arranged above and below the microscopic core model; the glass carriers are provided with sealing rubber sleeves, and the visual high-temperature and high-pressure kettle is provided with an annular heating jacket; an outlet of the microscopic core model is provided with a microflow channel which is connected to the micro-displacement and metering system through a pipe, effectively reducing the metering error caused by the dead volume of the pipe.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: August 30, 2022
    Assignee: Southwest Petroleum University
    Inventors: Wenlian Xiao, Yubin Yang, Jitian Ren, Wanfen Pu, Shuaishuai Liu, Xiao Guo, Yongming Li, Kun Wang, Lingli Zheng, Jinzhou Zhao, Yijian Chen, Quantang Fang
  • Patent number: 11429842
    Abstract: A computing system is provided. The computing system includes a processor configured to execute a convolutional neural network that has been trained, the convolutional neural network including a backbone network that is a concatenated pyramid network, a plurality of first head neural networks, and a plurality of second head neural networks. At the backbone network, the processor is configured to receive an input image as input and output feature maps extracted from the input image. The processor is configured to: process the feature maps using each of the first head neural networks to output corresponding keypoint heatmaps; process the feature maps using each of the second head neural networks to output corresponding part affinity field heatmaps; link the keypoints into one or more instances of virtual skeletons using the part affinity fields; and output the instances of the virtual skeletons.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: August 30, 2022
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Lijuan Wang, Kevin Lin, Zicheng Liu, Kun Luo
  • Patent number: 11429648
    Abstract: Embodiments of the present disclosure generally relate to a method and device for creating an index. For example, the embodiments of the present disclosure propose a method for creating an index, comprising: dividing a document into a plurality of regions; determining the number of times that a token appears in the plurality of regions, the token including at least one character in the document; assigning respective weights to the plurality of regions; and creating an inverted document linked list directed to the token based on the number of times that the token appears in the plurality of regions and respective weights of the plurality of regions. In addition, the embodiments of the present disclosure propose a corresponding device and computer program product for creating an index.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: August 30, 2022
    Assignee: EMC IP Holding Company LLC
    Inventors: Winston Lei Zhang, Charlie Chen, Kun Wu Huang, Jingjing Liu, Duke Dai
  • Publication number: 20220271881
    Abstract: A system and method for allocating network resources are disclosed herein. In one embodiment, the system and method are configured to perform: receiving a resource allocation message indicative of a plurality of resource groups allocated for a signal; and transmitting the signal using a portion of the plurality of resource groups, wherein, in a frequency domain, the portion of the plurality of resource groups presents a hopping pattern comprising at least a first hopping path that is associated with a first plurality of increasing frequency spacings and a second hopping path that is associated with a second plurality of decreasing frequency spacings.
    Type: Application
    Filed: May 12, 2022
    Publication date: August 25, 2022
    Inventors: Kun LIU, Bo DAI, Xianming CHEN, Weiwei YANG, Huiying FANG
  • Patent number: 11424806
    Abstract: Provided are a method and device for determining precoding, a method and device for detecting data, a storage medium and an electronic device. The method for determining precoding includes: receiving, by a first communication node, a precoding matrix indicator (PMI) sent by a second communication node; and determining a precoding matrix used on a control channel according to the PMI and a precoding parameter; where the precoding parameter includes at least one of: a PMI delay, the number of repetitions of the control channel, an aggregation level of the control channel, a candidate resource of the control channel, a starting physical resource block (PRB) sequence number of the control channel, a repetition resource group of the control channel, or a PRB set of the control channel.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: August 23, 2022
    Assignee: ZTE CORPORATION
    Inventors: Luanjian Bian, Bo Dai, Kun Liu, Weiwei Yang
  • Patent number: 11414729
    Abstract: The present disclosure concerns composite material having improved strength at elevated temperatures. The composite material comprises a matrix of an aluminum alloy (comprising, in weight percent, Si 0.05-0.30, Fe 0.04-0.6, Mn 0.80-1.50, Mg 0.80-1.50 and the balance being aluminum and unavoidable impurities) as well as particles of a filler material dispersed within the matrix. The matrix can optionally comprise Cu and/or Mo. In some embodiments, the composite material comprises, as a filler material, B4C as well as an additive selected from the group consisting of Ti, Cr, V, Nb, Zr, Sr, Sc and any combination thereof. The present disclosure also provides processes for making such composite materials.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: August 16, 2022
    Assignee: UNIVERSITE DU QUEBEC A CHICOUTIMI
    Inventors: Jean-Alain Laurin, Nicholas C. Parson, Mario Roux, Xiao-Guang Chen, Kun Liu
  • Publication number: 20220249046
    Abstract: The present disclosure relates to a detector apparatus. The detector apparatus may include a detecting module, an electronics module and a cooling assembly. The detecting module may be configured to detect radiation rays emitted from a subject and generate electrical signals in response to detection of radiation rays. The electronics module may be configured to process the electrical signals generated by the detecting module. The cooling assembly may be configured to cool the detecting module and the electronics module. The cooling assembly may include a first layer and a second layer. The first layer may be thermally connected with the detecting module, and the second layer may be thermally connected with the electronics module.
    Type: Application
    Filed: May 17, 2019
    Publication date: August 11, 2022
    Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Yixing SUN, Kun WU, Shitao LIU, Shaohui AN
  • Publication number: 20220253222
    Abstract: A data reduction method, apparatus, and computing device and a storage medium are provided. The method includes: when reduction is to be performed on a to-be-reduced data block, obtaining a fingerprint of the to-be-reduced data block; forming an index set based on the fingerprint of the to-be-reduced data block by using index information of data blocks with identical fingerprints; and performing, in the to-be-reduced data block based on the fingerprint of the to-be-reduced data block, data reduction processing on a data block to which index information in a same index set belongs.
    Type: Application
    Filed: April 29, 2022
    Publication date: August 11, 2022
    Inventors: Bang LIU, Liyu WANG, Kun GUAN, Wen YANG, Jianqiang SHEN