Patents by Inventor Nan Xu

Nan Xu 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: 20250237690
    Abstract: This application relates to an insulation state detection method, system, and apparatus as well as a storage medium and a program product. This method is applied to an energy management system. The energy management system is communicatively connected to a plurality of to-be-monitored components and one insulation monitoring module separately. All the to-be-monitored components and the insulation monitoring module are connected to a same direct-current bus in parallel. The method includes: detecting, by the insulation monitoring module in response to switching the insulation monitoring module to an on-state, an insulation state of each to-be-monitored component and an energy storage system sequentially based on a power-up and power-down sequence of the to-be-monitored components. This method simplifies a process of detecting the insulation fault of the energy storage system, thereby reducing complexity of the process of detecting the insulation fault of the energy storage system.
    Type: Application
    Filed: February 25, 2025
    Publication date: July 24, 2025
    Applicant: Contemporary Amperex Technology (Hong Kong) Limited
    Inventors: Xin LI, Ping LIU, Miaomiao ZHANG, Nan XU
  • Publication number: 20250174989
    Abstract: A power system includes a first current conversion module and a second current conversion module, obtains, in response to a determination of obtaining electric energy from the power grid for the electric energy module, electric energy from the power grid through the first current conversion module, and release, in response to a determination of releasing electric energy from the electric energy module to the power grid, electric energy to the power grid through the first current conversion module and the second current conversion module.
    Type: Application
    Filed: January 28, 2025
    Publication date: May 29, 2025
    Inventors: Kai WU, Nan XU, Miaomiao ZHANG, Xin LI
  • Patent number: 12315526
    Abstract: A method and an apparatus for determining an echo, and a storage medium. The implementation solution includes: obtaining an echo estimation result by performing echo estimation on an original audio signal; obtaining an optimization processing result by performing optimization processing on the echo estimation result, the optimization processing includes at least one of amplitude dimension optimization processing, phase dimension optimization processing, or time domain dimension optimization processing; and determining an echo of the original audio signal using the optimization processing result.
    Type: Grant
    Filed: December 2, 2022
    Date of Patent: May 27, 2025
    Assignee: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.
    Inventors: Nan Xu, Saisai Zou, Li Chen
  • Publication number: 20250118887
    Abstract: An augmented reality (AR) or mixed reality (MR) eyewear display utilizes an antenna arrangement for eyewear that optimizes the performance of the antenna without sacrificing the functionality or modularity of the eyewear. In one implementation, the antenna arrangement includes a first conductor that functions as a ground for the antenna, a second conductor configured to help retain a lens, and an antenna feed configured to excite the second conductor, causing the second conductor to act as an antenna. The first and/or second conductor additionally acts as a lens retention feature by interfacing with a groove in a lens and the use of a locking clip that prevents the lens from becoming dislodged from the second conductor, thus enabling quick and easy installation or removal of the lens.
    Type: Application
    Filed: October 10, 2023
    Publication date: April 10, 2025
    Inventors: Emeka Ugwu, Balamurugan Shanmugam, Sajeev Alakkatt Paleri, Charles R. Schabacker, Nan Xu
  • Patent number: 12225180
    Abstract: A method of generating stereoscopic display contents includes obtaining, from a Red, Green, Blue plus Distance (RGB-D) image using a processor, a first Red, Green, and Blue (RGB) image and a depth image; determining, based on depth values in the depth image, a first disparity map in accordance with the RGB-D image; determining a second disparity map and a third disparity map by transforming the first disparity map using a disparity distribution ratio; and generating, by the processor, the pair of stereoscopic images comprising a second RGB image and a third RGB image, wherein the second RGB image is generated by shifting a first set of pixels in the first RGB image based on the second disparity map, and the third RGB image is generated by shifting a second set of pixels in the first RGB image based on the third disparity map.
    Type: Grant
    Filed: October 25, 2022
    Date of Patent: February 11, 2025
    Assignee: Orbbec 3D Technology International, Inc.
    Inventors: Xin Xie, Nan Xu, Xu Chen
  • Publication number: 20240395356
    Abstract: The present disclosure relates to the field of biotechnology, and, more specifically, to systems and methods for identifying novel pore-forming toxins (PFTs) based on protein structures and sequences.
    Type: Application
    Filed: May 5, 2022
    Publication date: November 28, 2024
    Applicants: BASF SE, University of Southern California
    Inventors: Theju Jacob, Theodore Kahn, Yan Liu, Nan Xu
  • Publication number: 20240372249
    Abstract: The present disclosure provides a metal structure, or antenna radiator, for an accessory that is configured to function as both an antenna and an input control. The device may be a wearable device with a first surface shaped to be in contact with the human body and a second surface shaped to be exposed when the device is being worn. The antenna radiator may be located internally within the housing of the device and coupled to a printed circuit board (“PCB”). The PCB may be located between the antenna radiator and the surface of the housing such that the PCB may shield the antenna radiator from antenna loss due to the human body. An electric field may extend between the PCB and the antenna radiator. The fringe electric field may improve cross-head and cross-body connectivity between the accessory and another device.
    Type: Application
    Filed: July 18, 2024
    Publication date: November 7, 2024
    Applicant: Google LLC
    Inventors: Nan Xu, Vijay Asrani, Jiang Zhu
  • Publication number: 20240284057
    Abstract: Disclosed are a video-based high-image-quality image extraction processing method and apparatus, and a mobile terminal. The method comprises: acquiring a video file from which a picture needs to be extracted; selecting a designated segment in the video file for frame-by-frame playback; when a shutter instruction is detected, according to the result of frame-by-frame playback, extracting a key frame required to generate a picture from within the selected designated segment, and extracting specified frames before and after the key frame; and performing multi-frame synthesis on the extracted key frame and the specified frames before and after the key frame, and obtaining a target static image.
    Type: Application
    Filed: March 22, 2022
    Publication date: August 22, 2024
    Applicant: Huizhou TCL Cloud Internet Corporation Technology Co., Ltd.
    Inventor: Nan XU
  • Patent number: 12068530
    Abstract: The present disclosure provides a metal structure, or antenna radiator, for an accessory that is configured to function as both an antenna and an input control. The device may be a wearable device with a first surface shaped to be in contact with the human body and a second surface shaped to be exposed when the device is being worn. The antenna radiator may be located internally within the housing of the device and coupled to a printed circuit board (“PCB”). The PCB may be located between the antenna radiator and the surface of the housing such that the PCB may shield the antenna radiator from antenna loss due to the human body. An electric field may extend between the PCB and the antenna radiator. The fringe electric field may improve cross-head and cross-body connectivity between the accessory and another device.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: August 20, 2024
    Assignee: Google LLC
    Inventors: Nan Xu, Vijay Asrani, Jiang Zhu
  • Publication number: 20240236288
    Abstract: A method of generating stereoscopic display contents includes obtaining, from a Red, Green, Blue plus Distance (RGB-D) image using a processor, a first Red, Green, and Blue (RGB) image and a depth image; determining, based on depth values in the depth image, a first disparity map in accordance with the RGB-D image; determining a second disparity map and a third disparity map by transforming the first disparity map using a disparity distribution ratio; and generating, by the processor, the pair of stereoscopic images comprising a second RGB image and a third RGB image, wherein the second RGB image is generated by shifting a first set of pixels in the first RGB image based on the second disparity map, and the third RGB image is generated by shifting a second set of pixels in the first RGB image based on the third disparity map.
    Type: Application
    Filed: October 25, 2022
    Publication date: July 11, 2024
    Inventors: Xin Xie, Nan Xu, Xu Chen
  • Publication number: 20240174572
    Abstract: A biochar is produced by co-pyrolysing an aquatic plant enriched with heavy metals with a clay mineral, and the aquatic plants themselves have high enrichment and adsorb heavy metals in contaminated water; heavy metals are in situ adsorbed, and are coated or enriched in the biochar, therefore extending the migration time of heavy metals, which are also very stable; attapulgite and montmorillonite as clay minerals are loaded in the biochar during the preparing process; heavy metals contained in the biochar play a catalytic role, and synergy with activated attapulgite, therefore increasing the reliability of the biochar, and effectively reducing the ecological effectiveness and potential risk of heavy metals in the biochar.
    Type: Application
    Filed: March 14, 2022
    Publication date: May 30, 2024
    Applicant: CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCES
    Inventors: Beidou XI, Lei WANG, Lan JIANG, Yan SHAO, Nan XU, Shaofeng LI, Yangyang WANG, Xiaoshu WANG, Jinsheng WANG, Ming CHANG, Gen ZHANG, Hui WANG, Honghu ZENG, Xianghua XIAO
  • Publication number: 20240157415
    Abstract: A process for producing a heavy metal mediated biochar composite using silicate solidification. Hydrocharis dubia has excellent enrichment of manganese ions in sewage, and is used to treat sewage water to adsorb heavy metals such as lead, manganese and zinc contained in the sewage water into roots, stems and leaves thereof, which are pyrolysed in stages at high temperature with activated red mud and bentonite prior to blending with zeolites, to produce said heavy metal mediated biochar composite; the process significantly extends the migration time of heavy metals, increases the stability of heavy metals and reduces the risk of environmental pollution by heavy metal leakage.
    Type: Application
    Filed: March 3, 2022
    Publication date: May 16, 2024
    Applicant: CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCES
    Inventors: Lei WANG, Beidou XI, Xiaoshu WANG, Nan XU, Yan SHAO, Shaofeng LI, Yangyang WANG, Jinsheng WANG, Ming CHANG, Gen ZHANG, Lulu PAN, Honghu ZENG, Bo YANG
  • Publication number: 20240139790
    Abstract: A composite biochar for controlling heavy metal pollution and a process for producing the same, in particular enrichment of heavy metals such as arsenic and lead in soil with centipede grass, thereafter centipede grass is sintered with hydroxyapatite, sepiolite and chitosan, and compounded with microorganisms to produce said composite biochar; through the process of the present invention, heavy metals such as arsenic and lead are stably enriched or coated in said composite biochar, significantly reducing the potential hazard of arsenic and lead to the environment, and also providing new developmental ideas for treating heavy metal biomass.
    Type: Application
    Filed: March 16, 2022
    Publication date: May 2, 2024
    Applicant: CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCES
    Inventors: Lei WANG, Beidou XI, Yangyang WANG, Yan SHAO, Nan XU, Shaofeng LI, Xiaoshu WANG, Jinsheng WANG, Ming CHANG, Gen ZHANG, Lulu PAN, Kui ZHANG, Honghu ZENG
  • Publication number: 20240140843
    Abstract: A porous biochar for improving heavy pollution and a method for producing the same. Said porous biochar is prepared as follows: arrowhead, which has excellent enrichment of lead, is used to absorb heavy metal lead in polluted water or artificial wetlands, simultaneously absorb heavy metal cadmium, thereafter is dried and treated as a biomass, and then the biomass is calcined in stages with a passivating agent in a high temperature environment, so as to heavy metals such as lead and cadmium be stably coated or enriched in a biochar, which is mixed with Pseudomonas aeruginosa having high resistant, to obtain the porous biochar; the porous biochar has high specific surface area, high porosity and excellent mechanical properties, is very stable under different acid-base environments and oxidizing conditions.
    Type: Application
    Filed: February 23, 2022
    Publication date: May 2, 2024
    Applicant: CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCES
    Inventors: Lei WANG, Beidou XI, Honghu ZENG, Nan XU, Yan SHAO, Shaofeng LI, Ming CHANG, Jinsheng WANG, Xiaoshu WANG, Yangyang WANG, Gen ZHANG, Lulu PAN, Jing WANG
  • Publication number: 20240137481
    Abstract: A method of generating stereoscopic display contents includes obtaining, from a Red, Green, Blue plus Distance (RGB-D) image using a processor, a first Red, Green, and Blue (RGB) image and a depth image; determining, based on depth values in the depth image, a first disparity map in accordance with the RGB-D image; determining a second disparity map and a third disparity map by transforming the first disparity map using a disparity distribution ratio; and generating, by the processor, the pair of stereoscopic images comprising a second RGB image and a third RGB image, wherein the second RGB image is generated by shifting a first set of pixels in the first RGB image based on the second disparity map, and the third RGB image is generated by shifting a second set of pixels in the first RGB image based on the third disparity map.
    Type: Application
    Filed: October 24, 2022
    Publication date: April 25, 2024
    Inventors: Xin Xie, Nan Xu, Xu Chen
  • Patent number: 11936411
    Abstract: Systems, methods, and apparatuses, including electronic devices and computer-readable storage media, for adaptively switching wireless connections between antennas of a wearable electronic device and a host electronic device. One device includes a wearable electronic device with a first and second housing, each housing including two or more antennas. The wearable electronic device is configured to establish and monitor a wireless cross-link between two antennas in different housings, or between antennas in one housing and antennas of a host electronic device. The wearable electronic device can monitor the integrity of the wireless cross-link, and establish an updated cross-link in response to the wireless cross-link not meeting a predetermined integrity threshold. The wearable electronic device can monitor a wireless cross-head link between housings of a wearable electronic device at the same time as a wireless cross-body link between the wearable electronic device and the host electronic device.
    Type: Grant
    Filed: November 18, 2022
    Date of Patent: March 19, 2024
    Assignee: Google LLC
    Inventors: Vijay Asrani, Jiang Zhu, Nan Xu
  • Publication number: 20240077544
    Abstract: Disclosed are an arc discharge detection method and device for a battery system, and a battery energy storage system. The arc discharge detection method for a battery system comprises: sampling a terminal voltage and a charging and discharging current of a battery system, sampling the terminal voltage of the battery system twice and calculating a first voltage difference value, and sampling the terminal voltage of the battery system and a terminal voltage of an electricity load and calculating a second voltage difference value; performing time domain and frequency domain analysis on the sampled data to obtain corresponding time domain and frequency domain feature values; and on the basis of the time domain and frequency domain feature values and the first and second voltage difference values, determining whether arc discharge features are met, so as to determine whether an arc discharge fault occurs in the battery system.
    Type: Application
    Filed: January 13, 2022
    Publication date: March 7, 2024
    Inventors: Bin LIU, Zengkun NING, Min HUANG, Gang FANG, Jinjun LU, Nan XU, Tao LIU
  • Patent number: D1059095
    Type: Grant
    Filed: September 25, 2024
    Date of Patent: January 28, 2025
    Assignee: Shenzhen Zhixiao Technology Co., LTD
    Inventors: Nan Xu, Jinlin Zhuang
  • Patent number: D1069523
    Type: Grant
    Filed: November 6, 2024
    Date of Patent: April 8, 2025
    Assignee: SHENZHEN DAODAODIANZISHANGWU CO., LTD.
    Inventors: Nan Xu, Qian Jiang
  • Patent number: D1079436
    Type: Grant
    Filed: October 11, 2024
    Date of Patent: June 17, 2025
    Assignee: SHENZHEN DAODAODIANZISHANGWU CO., LTD.
    Inventors: Nan Xu, Qian Jiang