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).

  • Publication number: 20230306618
    Abstract: A method may include identifying primly camera speaker coordinates of a location of a speaker relative to a primary camera, converting the primary camera speaker coordinates to secondary camera speaker coordinates, the secondary camera speaker coordinates being of the location and relative to a secondary camera, and adjusting, using the secondary camera speaker coordinates of the secondary camera, a view setting of the secondary camera to track the location of the speaker.
    Type: Application
    Filed: September 9, 2020
    Publication date: September 28, 2023
    Applicant: POLYCOM COMMUNICATIONS TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Yongkang Fan, Xi Lu, Hai Xu, Hailin Song, Wenxue He
  • Publication number: 20230264577
    Abstract: An electrified vehicle and associated inverter configured for powering two different types of external loads include first and second phase/line legs combined with a first neutral leg coupled to a vehicle chassis, and a second floating neutral leg that is not coupled to the vehicle chassis. The first/second phase legs and first neutral leg are coupled to a first receptacle configured to receive a corresponding plug to power a first load, such as a power tool or accessory. The first/second phase legs and the second neutral leg are coupled to a second receptacle configured to receive a corresponding plug to power a second load, such as a home or building having an earth grounding electrode. The inverter may include an isolation transformer between the loads and the traction battery, and/or may be configured to provide single phase, split-phase, or three-phase power for either or both of the neutral connections.
    Type: Application
    Filed: February 18, 2022
    Publication date: August 24, 2023
    Applicant: Ford Global Technologies, LLC
    Inventors: Xi LU, Krishna Prasad BHAT, Ke ZOU, Chingchi CHEN, Michael W. DEGNER
  • Publication number: 20230245271
    Abstract: A real-time method (600) for enhancing facial images (102). Degraded images (102) of a person—such as might be transmitted during a videoconference—are rectified based on a single high definition reference image (604) of a person who is talking. Facial landmarks (501) are used to map (210) image data from the reference image (604) to an intervening image (622) having a landmark configuration like that in a degraded image (102). The degraded images (102) and their corresponding intervening images (622) are blended using an artificial neural network (800, 900) to produce high-quality images (108) of the person who is speaking during a videoconference.
    Type: Application
    Filed: July 6, 2020
    Publication date: August 3, 2023
    Inventors: Hailin Song, Hai Xu, Yongkang Fan, Tianran Wang, Xi Lu
  • Publication number: 20230227444
    Abstract: The present invention relates to a compound as shown in general formula (I) below (in formula (I), each of R1 and R2 independently represents a hydrogen atom or a C1-10 linear or branched alkyl optionally having a substituent, or the two together form a cycloalkyl with 3 to 8 ring carbon atoms; each of R3 and R4 independently represents a hydrogen atom or a C1-10 linear or branched alkyl optionally having a substituent or a C6-12 aryl optionally having a substituent, or the two together form a cycloalky with 3 to 8 ring carbon atoms; X represents C or N; and Y represents a linear or branched alkenyl or alkynyl with 2 to 6 carbon atoms and optionally having a substituent, or carboxyl). The compound has good antibacterial properties against bacteria, especially gram-negative bacteria, has low drug resistance, and has good prospects for the effective treatment of various conditions.
    Type: Application
    Filed: April 30, 2021
    Publication date: July 20, 2023
    Applicants: INSTITUTE OF MEDICINAL BIOTECHNOLOGY, CHINESE ACADEMY OF MEDICAL SCIENCES, GUANGZHOU HC PHARMACEUTICAL CO. LTD
    Inventors: Danqing SONG, Sheng TANG, Xuefu YOU, Zhiwen LI, Yanxiang WANG, Xi LU, Yinghong LI, Xinxin HU, Zhihao GUO, Xiukun WANG
  • Publication number: 20230186654
    Abstract: Systems and methods are provided for identifying and displaying whiteboard text and/or an active speaker in a video-based presentation, e.g., a video conference. Video images of an environment including a whiteboard may be captured by a video camera system. The video images may be analyzed to detect at least one text-containing area in the environment. Each text-containing area may be analyzed to determine whether it is an area of a whiteboard. When a text-containing area is identified as a whiteboard area, an area of view including the text-containing whiteboard area may be selected for display, e.g., a subset of the full frame captured by the video system. A video feed from the video camera system may be controlled to display the selected area of view at a client device, to provide a useful view of the whiteboard text and/or a speaking person located near the whiteboard text.
    Type: Application
    Filed: May 12, 2020
    Publication date: June 15, 2023
    Applicant: Polycom Communications Technology (Beijing) Co., Ltd.
    Inventors: Xi LU, Tianran WANG, Hailin SONG, Hai XU, Yongkang FAN
  • Patent number: 11649244
    Abstract: The present disclosure discloses a method for synthesizing a diaza-bridged compound and a diaza-bridged compound, belonging to the field of organic synthesis. The present disclosure includes the following reaction: in the formula, R is aryl, substituted aryl, alkyl or haloalkyl, Ra is any one of H, 2-nitrobenzenesulfonyl, 4-nitrobenzenesulfonyl or 2,4-dinitrobenzenesulfonyl, n=1 or 2. Since compound 2 and NH3 are used as raw materials, the present disclosure can not only effectively shorten the process flow and save process costs, but also improve the reaction yield to a certain extent. The present disclosure also provides a diaza-bridged compound, where the structural formula thereof is in the formula, Ra is any one of 2-nitrobenzenesulfonyl, 4-nitrobenzenesulfonyl or 2,4-dinitrobenzenesulfonyl.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: May 16, 2023
    Assignee: LINKCHEM CO., LTD., SHANGHAI
    Inventors: Xi Lu, Shuai Liu, Yong Liang, Jiaming Cai, Quan Tang, Yuan Zeng
  • Publication number: 20220398864
    Abstract: A method performs zooming based on gesture detection. A visual stream is presented using a first zoom configuration for a zoom state. An attention gesture is detected from a set of first images from the visual stream. The zoom state is adjusted from the first zoom configuration to a second zoom configuration to zoom in on a person in response to detecting the attention gesture. The visual stream is presented using the second zoom configuration after adjusting the zoom state to the second zoom configuration. Whether the person is speaking is determined, from a set of second images from the visual stream. The zoom state is adjusted to the first zoom configuration to zoom out from the person in response to determining that the person is not speaking. The visual stream is presented using the first zoom configuration after adjusting the zoom state to the first zoom configuration.
    Type: Application
    Filed: September 24, 2019
    Publication date: December 15, 2022
    Inventors: Xi Lu, Tianran Wang, Hailin Song, Hai Xu, Yongkang Fan
  • Patent number: 11501578
    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: May 10, 2021
    Date of Patent: November 15, 2022
    Assignee: Plantronics, Inc.
    Inventors: Hailin Song, Hai Xu, Xi Lu, Fangpo Xu
  • Publication number: 20220329755
    Abstract: A method of tracking a presenter during a videoconference, comprising: detecting, in a data stream, data indicating a presence of one or more persons at a videoconferencing endpoint, the data stream comprising a plurality of frames; detecting tracker initiation data (e.g., that a person is actively talking, or that a person has raised their hand, or both) in the data stream; determining a subject of interest responsive to the tracker initiation data, and tracking the subject of interest as they move while making a presentation.
    Type: Application
    Filed: June 10, 2020
    Publication date: October 13, 2022
    Applicant: PLANTRONICS, INC.
    Inventors: HAI XU, XI LU, YONGKANG FAN, WENXUE HE, HAILIN SONG
  • Patent number: D972667
    Type: Grant
    Filed: March 2, 2022
    Date of Patent: December 13, 2022
    Assignee: REESTAR INTERNATIONAL LIMITED
    Inventor: Xi Lu Qiao
  • Patent number: D973158
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: December 20, 2022
    Assignee: REESTAR INTERNATIONAL LIMITED
    Inventor: Xi Lu Qiao
  • Patent number: D980727
    Type: Grant
    Filed: October 20, 2022
    Date of Patent: March 14, 2023
    Assignee: REESTAR INTERNATIONAL LIMITED
    Inventor: Xi Lu Qiao
  • Patent number: D981142
    Type: Grant
    Filed: April 19, 2022
    Date of Patent: March 21, 2023
    Assignee: REESTAR INTERNATIONAL LIMITED
    Inventor: Xi Lu Qiao
  • Patent number: D982864
    Type: Grant
    Filed: October 21, 2022
    Date of Patent: April 4, 2023
    Assignee: Reestar International Limited
    Inventor: Xi Lu Qiao
  • Patent number: D985796
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: May 9, 2023
    Assignee: REESTAR INTERNATIONAL LIMITED
    Inventor: Xi Lu Qiao
  • Patent number: D986246
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: May 16, 2023
    Assignee: REESTAR INTERNATIONAL LIMITED
    Inventor: Xi Lu Qiao
  • Patent number: D989975
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: June 20, 2023
    Assignee: REESTAR INTERNATIONAL LIMITED
    Inventor: Xi Lu Qiao
  • Patent number: D991469
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: July 4, 2023
    Assignee: REESTAR INTERNATIONAL LIMITED
    Inventor: Xi Lu Qiao
  • Patent number: D999391
    Type: Grant
    Filed: January 3, 2022
    Date of Patent: September 19, 2023
    Assignee: REESTAR INTERNATIONAL LIMITED
    Inventor: Xi Lu Qiao
  • Patent number: D1000630
    Type: Grant
    Filed: May 20, 2023
    Date of Patent: October 3, 2023
    Assignee: REESTAR INTERNATIONAL LIMITED
    Inventor: Xi Lu Qiao