Patents by Inventor Guoqiang Li

Guoqiang Li 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: 11082718
    Abstract: The present disclosure provides a method and device for image coding and a method and device for image decoding, and the method includes: a representative pixel set of a coding block is constructed, and information for constructing the representative pixel set is determined; predicted values of pixel samples in the coding block are constructed, a generation manner for the predicted values including: constructing the predicted values of the pixel samples according to reconstructed pixel samples in an image region outside the coding block and pixel values of the representative pixel set; and the information for constructing the representative pixel set and information for constructing the predicted values are coded and written into a video bitstream.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: August 3, 2021
    Assignee: XI'AN ZHONGXING NEW SOFTWARE CO., LTD
    Inventors: Tao Lin, Ming Li, Guoqiang Shang, Zhao Wu
  • Publication number: 20210222859
    Abstract: A pin-type connection apparatus includes a first connecting seat, a second connecting seat, a connecting shaft, and a locking component, wherein a receiving hole and a locking hole on the adjacent side of the receiving hole are disposed on the second connecting seat, one end of the connecting shaft is fastened to the first connecting seat, a clamping hole is disposed at the other end of the connecting shaft, the connecting shaft can extend into the receiving hole, a first clamping protrusion is disposed in the clamping hole, a second clamping protrusion is disposed at one end of the locking component, and the locking component can pass through the locking hole and extend into the clamping hole; and when the locking component is rotated to a lockout position, the first clamping protrusion can abut against the second clamping protrusion and restrain the second clamping protrusion from exiting the clamping hole.
    Type: Application
    Filed: October 16, 2019
    Publication date: July 22, 2021
    Inventors: Xianfeng Zhang, Yongjun Zhang, Guoqiang Li, Jiawei Cao
  • Publication number: 20210225818
    Abstract: Provided is an LED display unit, comprising a front body, a lamp plate and a rear body, wherein the lamp plate is bendable and flexible, and the rear body comprises a plurality of rear body units, the front body is covered on one side of the lamp plate provided with LED lamps, each rear body unit is fixedly connected to a side of the lamp plate facing away from the LED lamps, and adjacent rear body units are arranged at intervals; by adopting the bendable and flexible lamp plate, every single LED display unit can be directly adjusted into a curved surface or any curved surface shape; a plurality of rear body units are fixed on the lamp plate, and gaps exist between the rear body units, which is beneficial to releasing bending stress and preventing the rear body from breaking during bending.
    Type: Application
    Filed: November 23, 2018
    Publication date: July 22, 2021
    Applicant: Shenzhen Gloshine Technology Co., Ltd.
    Inventors: Xianfeng ZHANG, Yongjun ZHANG, Guoqiang LI, Yongfeng GUO
  • Patent number: 11071223
    Abstract: Provided is a sealing ring, including a ring body, wherein the ring body includes a ring groove, a first convex ring is provided on each of the upper and lower surfaces of the bottom wall of the ring groove, and the first convex ring is a closed ring with the same extension direction as the ring groove. The side wall of the ring groove reduces the impact force of water, pressure between the first convex ring and sealed body is increased, and the sealing performance of the first convex ring is improved. Further provided is An LED display screen, including a module, box, power box and a plurality of sealing rings, wherein a first sealing ring is disposed between the power box and box, a second sealing ring is disposed between the box and module; the two rings have good sealing performance, which improves sealing performance of the LED screen.
    Type: Grant
    Filed: February 15, 2020
    Date of Patent: July 20, 2021
    Assignee: SHENZHEN GLOSHINE TECHNOLOGY CO., LTD.
    Inventors: Xianfeng Zhang, Yongjun Zhang, Guoqiang Li, Zhiqiang Gao
  • Publication number: 20210217879
    Abstract: The present invention discloses a method for preparing a GaN rectifier suitable for operating at an alternating current frequency of 35 GHz: sequentially growing, on a silicon substrate, an N-polar GaN buffer layer, a carbon doped semi-insulated N-polar GaN layer, a non-doped N-polar AlGaN layer, a non-doped N-polar GaN layer and a non-doped N-polar InGaN thin film to obtain a rectifier epitaxial wafer; preparing a pattern groove for a schottky contact electrode on the GaN rectifier epitaxial wafer, and depositing the schottky contact electrode in the groove; preparing a pattern for an ohmic contact electrode, and depositing a device ohmic contact electrode on the surface of the epitaxial wafer; subsequently, depositing a silicon nitride passivation layer at a part where there is no electrode on the surface of the epitaxial wafer, and preparing a surface electrode area; and finally, performing mesa isolation treatment on the GaN rectifier epitaxial wafer.
    Type: Application
    Filed: January 31, 2018
    Publication date: July 15, 2021
    Inventors: Wenliang WANG, Guoqiang LI, Xiaochan LI, Yuan LI
  • Patent number: 11041115
    Abstract: The present disclosure provides for shape memory proppants, methods for making shape memory proppants, and methods of using shape memory proppants, and the like. The strong expandable proppants of the present disclosure may be used in maintaining fracture openings.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: June 22, 2021
    Assignee: BOARD OF SUPERVISORS OF LOUISIANA STATE UNIVERSITY
    Inventors: Arash Dahi Taleghani, Amir Shojaei, Guoqiang Li
  • Publication number: 20210122865
    Abstract: A UV-curable and recyclable thermoset shape memory polymer is provided. The polymer includes a vitrimer-based monomer and a photoinitiator. The vitrimer-based monomer includes a first unit rendering a high chain stiffness upon polymerization of the monomer, and a second photopolymerizable unit for photopolymerization of the monomer under a UV irradiation. The polymer has high strength, high stiffness, high recovery stress, high energy storage, reasonable recycling efficiency, and is printable using SLA with high resolution.
    Type: Application
    Filed: April 30, 2019
    Publication date: April 29, 2021
    Applicant: Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
    Inventors: Ang LI, Guoqiang LI
  • Patent number: 10954390
    Abstract: The low temperature cracking and high temperature rutting of polymer-modified asphalt concrete pavement can be reduced. The composite includes asphalt and at least one polymer that expands at low temperature, triggered by cooling-induced tensile stress, to reduce thermal cracking. The composite includes at least one polymer that expands at high temperature, so that the composite recovers after compression induced by traffic loading at higher temperatures, thereby reducing rutting. The system reduces thermal stress, and reduces or even eliminates thermal cracking and rutting. Shape memory polymers (SMPs) are used to improve asphalt compositions so that they better resist both thermal cracking and rutting. The SMP(s) can be incorporated into the asphalt, or a portion of fine aggregates can be replaced with SMP particles or SMP fibers, or aggregate replacement and asphalt modification can be combined.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: March 23, 2021
    Assignee: Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
    Inventor: Guoqiang Li
  • Patent number: 10954767
    Abstract: Methods for temporary fracture isolation are provided. An existing fracture is treated with a chemical diverter. The chemical diverter is exposed to conditions causing it to expand, plugging the fracture. A new fracture can be created through the application of pressure and fluid, without disrupting the plugged fracture. The chemical diverter can then be removed through biodegradation or the application of a solvent to reopen the first fracture.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: March 23, 2021
    Assignee: BOARD OF SUPERVISORS OF LOUISIANA STATE UNIVERSITY
    Inventors: Arash Dahi Taleghani, Guoqiang Li
  • Publication number: 20210063009
    Abstract: Provided is an LED Screen, comprising a box frame and a display unit fixed in the box frame, wherein the display unit comprises a PCB board and a plurality of LED lamp beads fixed on the PCB board, the front and back of the display unit are covered with transparent waterproof membranes, which can play a waterproof role and avoid short circuit of the display unit; Waterproof membranes can also play a role in protecting the LED lamp beads and PCB board, preventing external objects from damaging the beads, and the PCB board from being corroded. Transparent waterproof membrane is easier for the light emitted from LED Lamp beads to pass through, so the PCB board installed with LED lamp beads and covered with waterproof membranes can be directly fixed on the box frame, and can be used, the PCB board can be directly maintained, which is simple and convenient.
    Type: Application
    Filed: October 16, 2019
    Publication date: March 4, 2021
    Inventors: Xianfeng Zhang, Yongjun Zhang, Guoqiang Li, Zhiqiang Gao
  • Patent number: 10934381
    Abstract: A sealant composition and method for its manufacture are disclosed. A two-way shape memory polymer (2W-SMP) sealant expands upon cooling and contracts upon heating, and thus provides improved sealing for pavements and other structures. The base resin for the sealant is polybutadiene with a high cis content. Uses for the sealant include, but are not limited to: sealant for expansion joint, contraction joint, or construction joint in cement concrete pavement; sealant or sealer for transverse cracks or block cracks in cement concrete pavement or asphalt concrete pavement; sealant for pipelines, lightweight composite structures, roofs, buildings, bridge decks, dams, offshore platforms; sealant for other structures and devices that have previously typically used polymer sealants.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: March 2, 2021
    Assignee: Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
    Inventors: Lu Lu, Jinbao Cao, Guoqiang Li
  • Patent number: 10927741
    Abstract: A method includes determining whether a urea refill event is detected, and clearing a quality accumulator value and clearing a latching abort command. The method includes determining whether urea fluid quality check abort conditions are met, and clearing the urea quality accumulator, latching the abort command, and exiting the reductant fluid quality check. In response to the abort conditions not being met, incrementing the urea quality accumulator according to an amount of urea being injected, and comparing the accumulated urea quantity to a low test threshold. The method includes, in response to the accumulated urea quantity being greater than the low test threshold, comparing the accumulated urea quantity to a high test threshold, and in response to the urea quantity being greater than the high test threshold, determining whether the a NOx exceedance is observed and clearing a urea quality error in response to the NOx exceedance not being observed.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: February 23, 2021
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Xi Wei, David Samuel Everard, Baohua Qi, Mickey R. McDaniel, Edmund P. Hodzen, Guoqiang Li
  • Patent number: 10907351
    Abstract: A hybrid core comprising a matrix and tubular structural reinforcements, such as a ductile matrix core reinforced with ductile hollow tubes, as well as panels which comprise such hybrid core. Embodiments of the invention manifest resistance to both interfacial debonding and ballistic penetration.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: February 2, 2021
    Assignee: BOARD OF SUPERVISORS OF LOUISIANA STATE UNIVERSITY AND AGRICULTURAL AND MECHANICAL COLLEGE
    Inventors: Guoqiang Li, Gefu Ji
  • Publication number: 20210020428
    Abstract: The present invention discloses a two-dimensional AlN material and its preparation method and application, wherein the preparation method comprises the following steps: (1) selecting a substrate and its crystal orientation; (2) cleaning the surface of the substrate; (3) transferring a graphene layer to the substrate layer; (4) annealing the substrate; (5) using the MOCVD process to introduce H2 to open the graphene layer and passivate the surface of the substrate; and (6) using the MOCVD process to grow a two-dimensional AlN layer. The preparation method of the present invention has the advantages that the process is simple, time saving and efficient. Besides, the two-dimensional AlN material prepared by the present invention can be widely used in HEMT devices, deep ultraviolet detectors or deep ultraviolet LEDs, and other fields.
    Type: Application
    Filed: April 26, 2018
    Publication date: January 21, 2021
    Inventors: Wenliang Wang, Guoqiang Li, Yulin Zheng
  • Patent number: 10876030
    Abstract: Embodiments of the present disclosure provide for modified cement material, methods of reducing or stopping cement shrinkage, methods of making modified cement material, and the like.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: December 29, 2020
    Assignee: BOARD OF SUPERVISORS OF LOUISIANA STATE UNIVERSITY AND AGRICULTURAL AND MECHANICAL COLLEGE
    Inventors: Arash Dahi Taleghani, Guoqiang Li
  • Publication number: 20200404046
    Abstract: An application download method for a download-to-start application includes obtaining, by a server, runtime information of an application from a large quantity of terminals that have downloaded and used the application, performing data analysis on the information, determining a sequence of application files based on a result of the data analysis, to arrange an application file with a high access probability in front of an application file with a low access probability, and transmitting the application files to a terminal device based on the sequence.
    Type: Application
    Filed: September 3, 2020
    Publication date: December 24, 2020
    Inventors: Xingnan Wang, Guoqiang Li, Fan Zhang, Zhiqiang Yu
  • Publication number: 20200392283
    Abstract: Shape memory polymers (SMP), methods of making shape memory polymers, and articles including shape memory polymers are provided. The SMPs include thermoset polymer networks formed from an epoxy and a diamine. The SMPs can be in particle form and can be added to other materials while maintaining expansion capabilities. Articles formed from the SMPs can include rebar.
    Type: Application
    Filed: January 11, 2019
    Publication date: December 17, 2020
    Inventors: Jizhou FAN, Guoqiang LI
  • Publication number: 20200343346
    Abstract: An InN nanorod epitaxial wafer grown on an aluminum foil substrate (1) sequentially comprises the aluminum foil substrate (1), an amorphous aluminum oxide layer (2), an AlN layer (3) and an InN nanorod layer, (4) from bottom to top. The wafer can be prepared by pretreating the aluminum foil substrate with an oxidized surface and carrying out an in-situ annealing treatment; then, in a molecular beam epitaxial growth process, forming AlN nucleation sites on the annealed aluminum foil substrate, nucleating on the AlN and growing InN nanorods on the AlN. where the substrate temperature is 400-700° C., the pressure of a reaction chamber is 4.0-10.0×10?5 Torr and the beam ratio of V/III is 20-40.
    Type: Application
    Filed: October 19, 2018
    Publication date: October 29, 2020
    Inventors: Guoqiang LI, Fangliang GAO, Zhenzhu XU
  • Publication number: 20200325340
    Abstract: A composition for sealing defects in structural materials such as roads or paved surfaces, the composition preferably comprising one or more shape memory polymer (xamSMP) components capable of responding to increased temperature by decreasing in volume.
    Type: Application
    Filed: April 27, 2020
    Publication date: October 15, 2020
    Inventor: Guoqiang Li
  • Publication number: 20200284074
    Abstract: The application belongs to the technical field of LED display screen box assembly, and relates to a tension lock and LED display screen box. The tension lock comprises a base, a rotating shaft, a shim and a knob, wherein the base is provided with a sliding hole, one end of the rotating shaft is fixedly connected with the knob, the other end of the rotating shaft is inserted into the sliding hole, the shim is rotationally connected with the rotating shaft, and the distance between the shim and the knob is kept constant; Turning the knob can make the rotating shaft rotate and slide along the axial direction of the sliding hole to make the shim move away from or close to the base. The tension lock can effectively improve the installation efficiency of LED display screen box.
    Type: Application
    Filed: February 26, 2020
    Publication date: September 10, 2020
    Inventors: Xianfeng Zhang, Yongjun Zhang, Guoqiang Li, Jiawei Cao