Patents by Inventor Xun Chen

Xun Chen 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: 11791178
    Abstract: A compliant mechanical system for Mini/Micro chip mass transfer and packaging comprises a flexure-based continuous ejector pin mechanism including a drive support plate, a mounting base, first thorn die attach drive devices, second thorn die attach drive devices, first flexible hinges, second flexible hinges, and a pricking pin. The first thorn die attach drive devices and the second thorn die attach drive devices are mounted on the drive support plate. A drive end of the first thorn die attach drive device horizontally passes rightward through the first flexible hinge at a corresponding position; a drive end of the second thorn die attach drive device horizontally passes leftward through the first flexible hinge at a corresponding position; and the mounting base is hinged to the drive ends of the two thorn die attach drive devices through the second flexible hinges.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: October 17, 2023
    Assignee: GUANGDONG UNIVERSITY OF TECHNOLOGY
    Inventors: Hui Tang, Zhishen Liao, Xin Chen, Zhihang Lin, Jian Gao, Qiang Liu, Xun Chen
  • Publication number: 20230303666
    Abstract: The present invention discloses antibodies capable of binding to and neutralizing SARS-CoV-2 and variants thereof. The invention also discloses a cell-free antibody engineering platform capable of identifying antibodies that bind to specific target molecules and virus-neutralizing antibodies.
    Type: Application
    Filed: September 24, 2021
    Publication date: September 28, 2023
    Inventors: Aviv Regev, Xun Chen
  • Publication number: 20230298914
    Abstract: A compliant mechanical system for Mini/Micro chip mass transfer and packaging comprises a flexure-based continuous ejector pin mechanism including a drive support plate, a mounting base, first thorn die attach drive devices, second thorn die attach drive devices, first flexible hinges, second flexible hinges, and a pricking pin. The first thorn die attach drive devices and the second thorn die attach drive devices are mounted on the drive support plate. A drive end of the first thorn die attach drive device horizontally passes rightward through the first flexible hinge at a corresponding position; a drive end of the second thorn die attach drive device horizontally passes leftward through the first flexible hinge at a corresponding position; and the mounting base is hinged to the drive ends of the two thorn die attach drive devices through the second flexible hinges.
    Type: Application
    Filed: December 6, 2022
    Publication date: September 21, 2023
    Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY
    Inventors: Hui TANG, Zhishen LIAO, Xin CHEN, Zhihang LIN, Jian GAO, Qiang LIU, Xun CHEN
  • Publication number: 20230268205
    Abstract: A flexure-based continuous ejector pin mechanism for Mini/Micro chip mass transfer includes a first drive frame, a second drive frame, a mounting base, a first thorn die attach drive device, a second thorn die attach drive device, first flexible hinges, second flexible hinges, and a pricking pin. The second drive frame and the first drive frame are connected through the first flexible hinge. The mounting base is connected to a left side and a right side of the second drive frame through the second flexible hinges. Compared with a laser transfer technology, the flexible movable thorn die attach device has lower cost and higher accuracy; compared with a vacuum nozzle transfer technology, the flexible movable thorn die attach device has higher transfer efficiency and quality; and compared with a conventional thorn die attach device, the flexible movable thorn die attach device has higher transfer efficiency and precision.
    Type: Application
    Filed: December 6, 2022
    Publication date: August 24, 2023
    Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY
    Inventors: Xin CHEN, Zhihang LIN, Hui TANG, Hongcheng LI, Jian GAO, Qiang LIU, Xun CHEN
  • Patent number: 11715655
    Abstract: A flexure-based continuous ejector pin mechanism for Mini/Micro chip mass transfer includes a first drive frame, a second drive frame, a mounting base, a first thorn die attach drive device, a second thorn die attach drive device, first flexible hinges, second flexible hinges, and a pricking pin. The second drive frame and the first drive frame are connected through the first flexible hinge. The mounting base is connected to a left side and a right side of the second drive frame through the second flexible hinges. Compared with a laser transfer technology, the flexible movable thorn die attach device has lower cost and higher accuracy; compared with a vacuum nozzle transfer technology, the flexible movable thorn die attach device has higher transfer efficiency and quality; and compared with a conventional thorn die attach device, the flexible movable thorn die attach device has higher transfer efficiency and precision.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: August 1, 2023
    Assignee: GUANGDONG UNIVERSITY OF TECHNOLOGY
    Inventors: Xin Chen, Zhihang Lin, Hui Tang, Hongcheng Li, Jian Gao, Qiang Liu, Xun Chen
  • Patent number: 11656924
    Abstract: An electronic device includes a memory and at least one processor coupled to the memory. The at least one processor is configured to identify a device change event in a host operating system, wherein the host operating system includes a host namespace, switch from the host namespace to a container namespace of a container, and update the container with information based on the device change event.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: May 23, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Guruprasad Ganesh, Ahmed M. Azab, Rohan Bhutkar, Haining Chen, Ruowen Wang, Xun Chen, Donguk Seo, Kyoung-Joong Shin
  • Publication number: 20230148621
    Abstract: The present disclosure relates to the technical field of tea processing, and discloses a method for processing dried-tangerine-peel Qingzhuan tea, including: weighing tea raw materials accurately according to a weight of a dried-tangerine-peel green tea brick; mixing raw material tea leaves and dried tangerine peels evenly, and steaming a mixture with a steamer; pressing the mixture into a tea-brick mold, covering with an aluminum cover plate and a corner iron fin immediately, and pressing compactly under a pressure machine; cooling to shape a pressed tea brick, and then removing the tea brick that is cooled and shaped; feeding the removed tea bricks to a drying room, arranging the tea bricks orderly on a drying rack at regular intervals for drying treatment, stop heating after the drying treatment is finished, opening a window for cooling, taking the tea bricks out of the dry room, and then packaging.
    Type: Application
    Filed: January 18, 2023
    Publication date: May 18, 2023
    Applicant: Institute of Fruit & Tea, Hubei Academy of Agricultural Sciences
    Inventors: Xun CHEN, Xian ZHANG, Gaixiang LEI, Wenli ZHANG
  • Publication number: 20220400012
    Abstract: A method includes receiving, at an electronic device and from a second electronic device, a second root identifier, wherein the second root identifier is associated with a second profile tree maintained at the second electronic device and determining that a first root identifier does not match the second root identifier, wherein the first root identifier is based on a first profile tree maintained at the electronic device. The method further includes sending, to the second electronic device, the first profile tree, wherein the first profile tree comprises representation of currently maintained user profiles at the electronic device, receiving, from the second electronic device, user profile update information, and updating a subset of the currently maintained user profiles based on the user profile update information.
    Type: Application
    Filed: February 2, 2022
    Publication date: December 15, 2022
    Inventors: Chu Ly Tran, Xun Chen
  • Publication number: 20220269816
    Abstract: A method includes obtaining, by an application executing on a processor of an electronic device, user data of a user, generating a representation of the user data, applying local differential privacy to the representation of the user data, to generate a transform of the representation of the user data, sending the transform of the representation of the user data, to a service provider via a network and receiving, from the service provider, via the network, service data based on the transform of the user data. The service data includes a user-specific output based on the transform of the user data. The application executes outside of a trusted execution environment (TEE) of the electronic device. The transform of the representation of the user data is generated in the TEE of the electronic device.
    Type: Application
    Filed: July 14, 2021
    Publication date: August 25, 2022
    Inventors: Jianwei Qian, Xun Chen
  • Publication number: 20220271933
    Abstract: A method executed by a first electronic device (ED1) includes splitting a selected secret for backup into a plurality of N secret shares in a trusted execution environment (TEE) of the ED1. The method includes transferring, via the transceiver over a short-range transmission, the N secret shares to N trustee devices, by transferring each secret share from among the N secret shares to a different trustee device from among the N trustee devices. Each secret share is configured to cause the trustee device to store the secret share in a TEE of a trustee device upon receipt by the trustee device. The method includes receiving, from the trustee device, one of an acknowledgement confirming the transferred secret share is stored in the TEE of the trustee device or an error warning the transferred secret share is not stored in the TEE of the trustee device.
    Type: Application
    Filed: November 30, 2021
    Publication date: August 25, 2022
    Inventors: Xun Chen, Jianwei Qian, Fanny F. Wong, Peter King, Sylvia Leung
  • Patent number: 11339316
    Abstract: A method and device for preparing a graphene-based polyethylene glycol phase change material.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: May 24, 2022
    Assignee: GUANGDONG UNIVERSITY OF TECHNOLOGY
    Inventors: Yun Chen, Xiangyuan Luo, Shuquan Ding, Canguang Lin, Zengguang Gao, Xin Chen, Xun Chen, Jian Gao
  • Patent number: 11331689
    Abstract: This application relates to an apparatus for producing a graphene film with a thermal manipulation function. The apparatus includes a filter cup, a filter flask, a vacuum pump, a fixing clamp, and a laser. The fixing clamp is configured to clamp a first filter membrane and a second filter membrane. The laser is configured to irradiate the first filter membrane. The first filter membrane and the second filter membrane are arranged stackedly. The filter cup and the filter flask are in snap fit up and down. The first filter membrane and the second filter membrane are arranged between the filter cup and the filter flask. The vacuum pump is in communication with the filter flask. This application also provides a method for producing the graphene film with a thermal manipulation function.
    Type: Grant
    Filed: December 23, 2021
    Date of Patent: May 17, 2022
    Assignee: GUANGDONG UNIVERSITY OF TECHNOLOGY
    Inventors: Yun Chen, Yuanhui Guo, Yixuan Bu, Shuquan Ding, Shengyu Hou, Junyu Long, Xun Chen, Xin Chen, Jian Gao
  • Publication number: 20220114014
    Abstract: An electronic device includes at least one transceiver, at least one memory, and at least one processor coupled to the at least one transceiver and the at least one memory. The at least one processor is configured to receive, via the at least one transceiver, an AI model in a trusted execution environment (TEE). The at least one processor is also configured to receive an inference request and input data from a source outside the TEE. The at least one processor is further configured to partition a calculation of an inference result between an internal calculation performed by processor resources within the TEE and an external calculation performed by processor resources outside the TEE. In addition, the at least one processor is configured to produce the inference result based on results of the internal calculation and the external calculation.
    Type: Application
    Filed: October 9, 2020
    Publication date: April 14, 2022
    Inventors: Xun Chen, Jianwei Qian
  • Publication number: 20220018779
    Abstract: Herein are described data acquisition systems and methods applying such systems to determine three-dimensional (3D) diffusion tensors, and simultaneously, to perform 3D structure imaging. Example data acquisition systems can include computing systems in communication with modified light sheet microscopes that are configured for high-speed volumetric imaging to record 3D diffusion processes and high-resolution 3D structural imaging.
    Type: Application
    Filed: July 16, 2021
    Publication date: January 20, 2022
    Inventors: HAI YAO, TONG YE, PENG CHEN, XUN CHEN
  • Patent number: 11221473
    Abstract: Devices and methods for super-resolution optical microscopy are described. Devices include an optical multiplexer to develop an excitation/illumination optical beam that includes alternating pulses of different profiles. Devices also include a signal processing unit to process a sample response to excitation/illumination beam and to subtract the neighboring pulses of the different profiles from one another on a pulse-to-pulse basis. Devices can be incorporated in existing confocal microscopy designs. As the subtraction effectively reduces the volume of the response signal, the spatial resolution of the systems can be markedly improved as compared to previously known optical microscopy approaches.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: January 11, 2022
    Assignee: Clemson University Research Foundation
    Inventors: Yang Li, Tong Ye, Xun Chen
  • Publication number: 20210374605
    Abstract: In one embodiment, a method includes accessing a plurality of initial gradients associated with a machine-learning model from a data store associated with a first electronic device, selecting one or more of the plurality of initial gradients for perturbation, generating one or more perturbed gradients for the one or more selected initial gradients based on a gradient-perturbation model, respectively, wherein for each selected initial gradient: an input to the gradient-perturbation model comprises the selected initial gradient having a value x, the gradient-perturbation model changes x into a first continuous value with a first probability or a second continuous value with a second probability, and the first and second probabilities are determined based on x, and sending the one or more perturbed gradients from the first electronic device to a second electronic device.
    Type: Application
    Filed: October 30, 2020
    Publication date: December 2, 2021
    Inventors: Jianwei Qian, Lichao Sun, Xun Chen
  • Publication number: 20210227007
    Abstract: A data storage method includes: acquiring to-be-transmitted data, and dividing the to-be-transmitted data into a plurality of data blocks; determining, from the plurality of data blocks, a set of target data blocks that are not stored in a predefined database; classifying the set of target data blocks as at least one piece of stream data based on stream information, and mounting the at least one piece of stream data to a to-be-confirmed queue; encoding the at least one piece of stream data, and transmitting the encoded at least one piece of stream data to a decoding device; and receiving a confirmation message sent by the decoding device for the encoded at least one piece of stream data, and storing a set of data blocks, in the to-be-confirmed queue, that correspond to the confirmation message, in the predefined database.
    Type: Application
    Filed: February 12, 2018
    Publication date: July 22, 2021
    Inventors: Zhaoxin LU, Peng LIN, Xun CHEN
  • Publication number: 20210219476
    Abstract: A variable pitch electronic component mass transfer apparatus is disclosed. A die-bond transfer head is disposed below each of the die-bond brackets. The die-bond connecting rod is provided with die-bond movable nodes arranged equidistantly. Each of the die-bond movable node is hinged to one of the die-bond brackets. An output end of the die-bond linear motor drives the die-bond connecting rod to move telescopically. A flip-chip transfer head is disposed below each of the flip-chip brackets. The flip-chip connecting rod is provided with flip-chip movable nodes arranged equidistantly. Each of the flip-chip movable nodes is hinged to one of the flip-chip brackets. An output end of the flip-chip linear motor drives the flip-chip connecting rod to move telescopically. An output end of the connecting rod rotating motor is connected to the flip-chip rail, and is configured to turn over the flip-chip rail.
    Type: Application
    Filed: March 31, 2021
    Publication date: July 15, 2021
    Inventors: Xin CHEN, Yunbo HE, Xiquan MAI, Chengqiang CUI, Qiang LIU, Jian GAO, Zhijun YANG, Xun CHEN, Yun CHEN, Kai ZHANG, Hui TANG, Yu ZHANG
  • Patent number: 11042398
    Abstract: A method for operating an electronic device, the method including spawning a name space tool (NST) as part of a boot process of a host OS, wherein the NST is a process with a plurality of root privileges of the host OS. The method further includes spawning, by the NST, a container for a guest OS, wherein the container for the guest OS is mapped to a dedicated domain in the host OS, and dropping, by the NST, a root privilege of the host OS in response to spawning the container for the guest OS.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: June 22, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Guruprasad Ganesh, Sudhi Herle, Ahmed M. Azab, Rohan Bhutkar, Ivan Getta, Xun Chen, Wenbo Shen, Ruowen Wang, Haining Chen, Khaled Elwazeer, Mengmeng Li, Peng Ning, Hyungseok Yu, Myungsu Cha, Kyungsun Lee, Se Young Choi, Yurak Choe, Yong Shin, Kyoung-Joong Shin, Donguk Seo, Junyong Choi
  • Publication number: 20210165850
    Abstract: A method for determining an event periodic value includes: acquiring a time series of a target event, where the time series includes a preset number of sequential values; calculating an autocorrelation sequence of the time series, and based on peak values and trough values of the autocorrelation sequence, determining a first candidate periodic value set; calculating a Fourier transform result of the time series, and based on amplitude values of frequency points of the Fourier transform result, determining a second candidate periodic value set; acquiring an union of the first candidate periodic value set and the second candidate periodic value set, determining a total value of confidences corresponding to each candidate periodic value in the union, and based on the total value of confidences, determining the periodic value of the target event.
    Type: Application
    Filed: August 17, 2017
    Publication date: June 3, 2021
    Inventor: Xun CHEN