Patents by Inventor Yufeng Zhu

Yufeng Zhu 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: 20250130494
    Abstract: The components and methods disclosed herein are directed to positive type photosensitive resin compositions, which are comprised of an alkynyl containing polymer, a benzophenone type DNQ, and solvents. The alkynyl containing polymer is prepared by the condensation reaction of alkynyl containing dianhydrides and hydroxyl containing diamines, and alkynyl containing end cappers. The advantage of this formulation is that the resulting photosensitive resin composition is comprised of only a polymer, a benzophenone type DNQ PAC, and solvents that generates high resolution patterned films with good thermal and physical properties without using additional additives. This composition also enables film curing at relatively low temperatures without additional additives, simplifying the composition. After curing, the alkynyl units in the polymer chain and the chain ends give the cured film excellent solvent resistance and film retention due to intra and/or inter-molecular crosslinking.
    Type: Application
    Filed: March 19, 2024
    Publication date: April 24, 2025
    Applicant: Akron Polymer Systems, Inc.
    Inventors: Yufeng Zhu, Lang Hu, Zhen Li, Limin Sun, Dong Zhang, Xiaoliang Zheng
  • Patent number: 11817022
    Abstract: A method for correcting artifacts in artificial reality headsets is provided. The method includes coupling a first image portion into a waveguide in a display for an artificial reality device, provided by a first array of pixels, coupling a second image portion into the waveguide in the display, provided by a second array of pixels, directing the first image portion through an eyebox, directing the second image portion through the eyebox, and tiling, in a user's retina, the first image portion and the second image portion to form an image having an extended field of view that includes an overlapping area comprising light provided by the first array of pixels and the second array of pixels. A system including a memory storing instructions and a processor to execute the instructions to cause the system to perform the above method are also provided.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: November 14, 2023
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Nicholas Daniel Trail, Byron Taylor, Yufeng Zhu, Andrew John Ouderkirk, Hee Yoon Lee, Sharvil Shailesh Talati, Behnam Bastani, Pasi Saarikko
  • Publication number: 20230169897
    Abstract: A method for correcting artifacts in artificial reality headsets is provided. The method includes coupling a first image portion into a waveguide in a display for an artificial reality device, provided by a first array of pixels, coupling a second image portion into the waveguide in the display, provided by a second array of pixels, directing the first image portion through an eyebox, directing the second image portion through the eyebox, and tiling, in a user's retina, the first image portion and the second image portion to form an image having an extended field of view that includes an overlapping area comprising light provided by the first array of pixels and the second array of pixels. A system including a memory storing instructions and a processor to execute the instructions to cause the system to perform the above method are also provided.
    Type: Application
    Filed: October 14, 2022
    Publication date: June 1, 2023
    Inventors: Nicholas Daniel Trail, Byron Taylor, Yufeng Zhu, Andrew John Ouderkirk, Hee Yoon Lee, Sharvil Shailesh Talati, Behnam Bastani, Pasi Saarikko
  • Patent number: 11153157
    Abstract: A system for configuration management using OVSDB protocol. The system includes a configuration manager on a server computer and a plurality of devices on a plurality of computing devices. The configuration manager comprises an OVSDB server maintaining an OVSDB database. Each of the plurality of devices includes an OVSDB client. The OVSDB database on the configuration manager comprises a database schema containing configuration data for the plurality of devices. The OVSDB server on the configuration manager communicates with the OVSDB client on each of the plurality of devices via OVSDB protocol in managing configurations of the plurality of devices.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: October 19, 2021
    Assignee: Stellar Cyber, Inc.
    Inventors: Yufeng Zhu, Xin Wang
  • Publication number: 20190280924
    Abstract: A system for configuration management using OVSDB protocol. The system includes a configuration manager on a server computer and a plurality of devices on a plurality of computing devices. The configuration manager comprises an OVSDB server maintaining an OVSDB database. Each of the plurality of devices includes an OVSDB client. The OVSDB database on the configuration manager comprises a database schema containing configuration data for the plurality of devices. The OVSDB server on the configuration manager communicates with the OVSDB client on each of the plurality of devices via OVSDB protocol in managing configurations of the plurality of devices.
    Type: Application
    Filed: March 11, 2019
    Publication date: September 12, 2019
    Inventors: YUFENG ZHU, Xin Wang
  • Patent number: 8370921
    Abstract: Packet sequence number checking through a VPN tunnel may be performed by assigning sequence numbers on a per-priority class basis to packets traversing the VPN tunnel. In one implementation, a network device may receive a packet that is to be transmitted over a VPN tunnel, the packet including control information that includes at least a QoS priority class of the packet. The network device may extract the priority class of the packet from the control information and generate a sequence value that describes an arrival sequence of the packet relative to other received packets of the same priority class as the packet. The network device may additionally generate an IPsec header for the packet, the IPsec header including the sequence value and the priority class of the packet; attach the IPsec header to the packet; and transmit the packet through the VPN tunnel.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: February 5, 2013
    Assignee: Juniper Networks, Inc.
    Inventors: Yifei Duan, Yufeng Zhu
  • Publication number: 20110078783
    Abstract: Packet sequence number checking through a VPN tunnel may be performed by assigning sequence numbers on a per-priority class basis to packets traversing the VPN tunnel. In one implementation, a network device may receive a packet that is to be transmitted over a VPN tunnel, the packet including control information that includes at least a QoS priority class of the packet. The network device may extract the priority class of the packet from the control information and generate a sequence value that describes an arrival sequence of the packet relative to other received packets of the same priority class as the packet. The network device may additionally generate an IPsec header for the packet, the IPsec header including the sequence value and the priority class of the packet; attach the IPsec header to the packet; and transmit the packet through the VPN tunnel.
    Type: Application
    Filed: December 8, 2009
    Publication date: March 31, 2011
    Applicant: JUNIPER NETWORKS INC.
    Inventors: Yifei DUAN, Yufeng ZHU