Patents by Inventor Xi Lu

Xi Lu 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: 11142072
    Abstract: A vehicle includes a power-electronics converter and an electrical outlet in electric communication with the power-electronics converter and configured to power external loads. The vehicle includes at least one electrical outlet including at least a first socket configured to power a first category of external loads and a second socket configured to power a second category of external loads. The vehicle is configured to only power one of the first and second loads at a time. This may be accomplished using physical features or electronically.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: October 12, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Krishna Prasad Bhat, Michael W. Degner, Ke Zou, Xi Lu
  • Patent number: 11133796
    Abstract: A vehicle includes an electric machine, an IGBT, and a gate driver. The IGBT has a gate, an emitter, and a collector and is configured to flow an electric charge through a phase of the electric machine. The gate driver is configured to flow current onto the gate at a first level, and in response to a time integral of a voltage across the phase exceeding a predetermined level, transition from the first level to a second level less than the first level.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: September 28, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Zhuxian Xu, Chingchi Chen, Ke Zou, Xi Lu, Michael W. Degner, Jun Kikuchi
  • Patent number: 11115019
    Abstract: Circuitry includes a pair of switches arranged in series, and a gate driver. The gate driver, responsive to a magnitude of current through one of the switches exceeding a threshold, discharges a gate of the one through a first resistor. The gate driver also, responsive to a voltage across a parasitic inductance of the switch becoming zero, discharges the gate through a second resistor but not the first resistor.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: September 7, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Xi Lu, Chingchi Chen
  • Publication number: 20210271911
    Abstract: A videoconferencing device at an endpoint determines whether a person is a real person standing in front of a display device or if the person is instead an image rendered by a display device. In the first instance the real person will be included in a video feed for transmission to a remote endpoint. In the second instance, images of the display device on which the person is rendered will not be included in the video feed.
    Type: Application
    Filed: May 10, 2021
    Publication date: September 2, 2021
    Applicant: Plantronics, Inc.
    Inventors: Hailin SONG, Hai XU, Xi LU, Fangpo XU
  • Publication number: 20210262058
    Abstract: To solve the technical problem of the incapacity to perform a quantitative matching design of residual compressive stress in the process of prior structural cold working-residual compressive stress design, the invention provides a method of structural cold working-residual compressive stress distribution quantitative matching design, characterized by treating the fatigue strength of a mechanical structure and parts as a field, and matching a structural stress field and a fatigue strength field organically, to quantitatively match the residual compressive stress in conjunction with characteristics of the cold working process.
    Type: Application
    Filed: July 9, 2020
    Publication date: August 26, 2021
    Applicant: UNIVERSITY OF SHANGHAI FOR SCIENCE AND TECHNOLOGY
    Inventors: XI LU, HANGUANG LIU, LEI TIAN, HONG WANG, JIAWEI HUANG
  • Publication number: 20210262901
    Abstract: To solve the problem of the incapacity of the prior method for evaluating a lightweight level based on fatigue strength to quantitatively evaluate a whole-field lightweight level of a mechanical structure and parts based on fatigue strength, the invention provides a method for quantitatively evaluating a whole-field lightweight level of a structure based on fatigue strength, characterized by matching a stress field of a structure with a fatigue strength field of the structure to quantitatively evaluate the whole-field lightweight level, specifically, by determining an ideal fatigue strength field distribution of a dangerous cross-section of the structure according to a maximum stress amplitude distribution of the dangerous cross-section, determining a fatigue strength distribution of the dangerous cross-section of the structure according to a static strength distribution requirement and a residual stress distribution of the dangerous cross-section, and applying a stress-strength interference model to quantita
    Type: Application
    Filed: July 9, 2020
    Publication date: August 26, 2021
    Applicant: UNIVERSITY OF SHANGHAI FOR SCIENCE AND TECHNOLOGY
    Inventors: XI LU, JIAWEI HUANG, HONG WANG, HANGUANG LIU, LEI TIAN
  • Patent number: 11042767
    Abstract: A videoconferencing device at an endpoint determines whether a person is a real person standing in front of a display device or if the person is instead an image rendered by a display device. In the first instance the real person will be included in a video feed for transmission to a remote endpoint. In the second instance, images of the display device on which the person is rendered will not be included in the video feed.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: June 22, 2021
    Assignee: Plantronics, Inc.
    Inventors: Hailin Song, Hai Xu, Xi Lu, Fangpo Xu
  • Patent number: 11028421
    Abstract: The disclosure discloses recombinant Pseudomonas plecoglossicida for producing L-xylose and application thereof, and belongs to the technical field of bioengineering. According to the disclosure, a synthesized 2-ketogluconate reductase gene and a 2,5-diketogluconate reductase gene derived from Corynebaterium ATCC 31090 and a pyruvate decarboxylase gene derived from Saccharomyces cerevisiae are successfully expressed in a host P. plecoglossicida by a double plasmid system, and an obtained genetically engineered strain is fermented for 56 h in a shake flask, where the yield of L-xylose reaches 16.2 g/L, and the transformation rate reaches 20.3%; the obtained genetically engineered strain is fermented for 48 h and 44 h in 3 L and 15 L fermentors, respectively, where the yields of L-xylose reach 37.6 g/L and 45.8 g/L, respectively, and the glucose transformation rates are 47.0% and 57.3%, respectively.
    Type: Grant
    Filed: November 28, 2019
    Date of Patent: June 8, 2021
    Assignee: LINKCHEM CO. LTD.
    Inventor: Xi Lu
  • Patent number: 11007391
    Abstract: Provided are composite materials that include a polymeric material and one or more metal organic frameworks intermixed with the polymeric material. A polymeric material may be a block copolymer that is optionally polymerized prior to combination with the metal organic framework. The composite materials are useful for many applications including as sorbents for removal of a chemical, optionally a toxic chemical, from a surface where the surface is contracted with the composite material which reacts with or adsorbs the chemical and is then removed to remove the chemical from the surface.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: May 18, 2021
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Gregory W Peterson, Xi Lu
  • Publication number: 20210104851
    Abstract: A vehicle includes a power-electronics converter and an electrical outlet in electric communication with the power-electronics converter and configured to power external loads. The vehicle includes at least one electrical outlet including at least a first socket configured to power a first category of external loads and a second socket configured to power a second category of external loads. The vehicle is configured to only power one of the first and second loads at a time. This may be accomplished using physical features or electronically.
    Type: Application
    Filed: October 8, 2019
    Publication date: April 8, 2021
    Inventors: Krishna Prasad BHAT, Michael W. DEGNER, Ke ZOU, Xi LU
  • Patent number: 10933761
    Abstract: A system and method for powering an electrical load. The system and method including a first inverter for converting a first DC power provided from a battery within a vehicle to a first AC power. The system and method also including a rectifier that includes an input connected to a secondary winding of a transformer. The rectifier also having an output connected to at least two capacitors. The rectifier and capacitors converting the first AC power to a second DC power. The system and method also including an inverter for converting the second DC power to an output AC power that is supplied to a split-phase output. The system and method also connecting one leg of the split-phase output between the at least two capacitors and to a center tap of the transformer to modify a voltage amplitude of the second DC power.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: March 2, 2021
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Xi Lu, Ke Zou, Krishna Prasad Bhat, Chingchi Chen, Michael W. Degner
  • Patent number: 10919407
    Abstract: A vehicle power system includes a power converter including one or more phase leg lines and a negative rail line. The system also includes a controller that operates the power converter to flow current through some of the phase leg lines and the negative rail line to output DC power, and operates the power converter to flow current through the some of the phase leg lines and not the negative rail line to output AC power.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: February 16, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Xi Lu, Ke Zou, Krishna Prasad Bhat, Michael W. Degner
  • Publication number: 20210034892
    Abstract: A videoconferencing device at an endpoint determines whether a person is a real person standing in front of a display device or if the person is instead an image rendered by a display device. In the first instance the real person will be included in a video feed for transmission to a remote endpoint. In the second instance, images of the display device on which the person is rendered will not be included in the video feed.
    Type: Application
    Filed: July 30, 2020
    Publication date: February 4, 2021
    Applicant: Plantronics, Inc.
    Inventors: Hailin Song, Hai Xu, Xi Lu, Fangpo Xu
  • Patent number: 10899231
    Abstract: A vehicle includes an inverter configured to power an external device. The vehicle further includes a controller programmed to cause the inverter to output a voltage at a steady-state amplitude and a steady-state frequency and, responsive to detecting an inrush current event in progress that is caused by the external device, operate the inverter to reduce the voltage to prevent an overcurrent. The controller is programmed to identify the type of load connected and return the voltage to the steady-state amplitude and steady-state frequency based on the type of load.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: January 26, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Xi Lu, Michael W. Degner, Krishna Prasad Bhat, Ke Zou
  • Patent number: D900289
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: October 27, 2020
    Inventors: Xi Lu, Tai Xing Yin
  • Patent number: D906528
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: December 29, 2020
    Assignee: JOICOM CORPORATION
    Inventor: Xi Lu Qiao
  • Patent number: D908853
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: January 26, 2021
    Inventors: Xi Lu, Tai Xing Yin
  • Patent number: D912617
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: March 9, 2021
    Assignee: JOLCOM CORPORATION
    Inventor: Xi Lu Qiao
  • Patent number: D912742
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: March 9, 2021
    Assignee: JOICOM CORPORATION
    Inventor: Xi Lu Qiao
  • Patent number: D932328
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: October 5, 2021
    Assignee: ROCDAN LIMITED
    Inventor: Xi Lu Qiao