Patents by Inventor Yu Qian

Yu Qian 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: 20240248047
    Abstract: Described herein are a low-cost, non-destructive, and contact-free intelligent inspection system that is field-deployable on a geometry car, high-rail vehicle, or other types of track inspection platforms to identify broken railway/railroad spikes in real-time.
    Type: Application
    Filed: November 20, 2023
    Publication date: July 25, 2024
    Applicant: University of South Carolina
    Inventor: Yu Qian
  • Publication number: 20240108656
    Abstract: The present disclosure provides, among other things, a method for efficiently producing a cell population enriched in Natural Killer cells (NK cells) from induced pluripotent cells.
    Type: Application
    Filed: December 14, 2023
    Publication date: April 4, 2024
    Inventors: Lan Cao, Hui-Hsin Chang, Jianxin Hu, Yu Qian, Xi Shi
  • Publication number: 20240054628
    Abstract: Evaluating railway ballast fouling condition is critical to assessing track conditions and arranging proper ballast maintenance. Because fouled ballast materials with different fouling conditions have different material properties, these properties can be used to evaluate the fouling severity. Various previously developed approaches to estimating fouling conditions often require special sensors or equipment, and well-trained technicians. Recently, convolutional neural network (CNN) based computer vision approaches have performed particle segmentation to obtain ballast grain size distribution. While the coarse aggregate fraction can be evaluated, many such approaches do not segment fine particles. This disclosure is an image analysis approach to directly estimate the ballast fouling conditions. First, fouled ballast images with different fouling conditions are taken as the reference. Then, the RGB color distributions of the fouled ballast images are processed through statistical analysis.
    Type: Application
    Filed: July 17, 2023
    Publication date: February 15, 2024
    Inventors: YUFENG GONG, YU QIAN
  • Publication number: 20230386195
    Abstract: The disclosure deals with a system and method recognizing the same person from different pictures in order to identify who is who based on photos or videos from different sources. Facial recognition plays an increasingly important role in modern life. Due to the low power consumption of Spiking Neural Networks (SNNs), this disclosure proposed an SNNs-based facial recognition model converted from a well-known facial recognition network ArcFace. The experimental results show that SNN (duration=200) achieved 99.00% overall accuracy on the testing dataset and outperformed the original ArcFace.
    Type: Application
    Filed: May 8, 2023
    Publication date: November 30, 2023
    Inventors: YU QIAN, YOUZHI TANG
  • Patent number: 11821848
    Abstract: Described herein are a low-cost, non-destructive, and contact-free intelligent inspection system that is field-deployable on a geometry car, high-rail vehicle, or other types of track inspection platforms to identify broken railway/railroad spikes in real-time.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: November 21, 2023
    Assignee: University of South Carolina
    Inventor: Yu Qian
  • Publication number: 20230334379
    Abstract: The present invention discloses an energy-efficient capacitance extraction method based on machine learning, and involves improving parameter extraction efficiency by using a machine learning model to extract parasitic capacitance; generally representing an interconnection line structure by grid-based data representation; reducing a workload of parameter extraction and enhancing the robustness of different semiconductor technologies with the idea of an adaptive extraction window; establishing a machine learning model of capacitance extraction for a two-dimensional interconnection line structure, and extracting grid parameters of a target interconnection line structure and inputting the grid parameters into the machine learning model, thereby obtaining parasitic capacitance parameters. Compared with an existing capacitance extraction technology, an capacitance extractor has achieved excellent performance in accuracy, speed and time and space consumption.
    Type: Application
    Filed: March 23, 2023
    Publication date: October 19, 2023
    Applicant: ZHEJIANG UNIVERSITY
    Inventors: Cheng ZHUO, Yuan Xu, Yu Qian, Chenyi Wen, Xunzhao YIN
  • Publication number: 20230314148
    Abstract: Described herein are systems and methods for identifying an optimal travel route for first travelers, such as commuters, first responders, etc., that considers both potential railroad crossing blockages in addition to street traffic congestion conditions to provide real-time optimal vehicle routing based on real-time street and railroad crossing conditions.
    Type: Application
    Filed: January 30, 2023
    Publication date: October 5, 2023
    Applicant: University of South Carolina
    Inventors: Yu Qian, Yuche Chen
  • Publication number: 20230314383
    Abstract: Described herein are systems, methods and devices for gathering sound emission data from railway spikes in order to determine if a spike is undamaged, damaged, or broken via initiating sound waves in the spike and analyzing same to determine the structural integrity of the spike being tested.
    Type: Application
    Filed: March 21, 2023
    Publication date: October 5, 2023
    Applicant: University of South Carolina
    Inventors: Yu Qian, Jun Liu
  • Publication number: 20230286556
    Abstract: Described herein is a fully autonomous drone-based track inspection system that does not rely on GPS but instead uses optical images taken from the drone to identify the railroad track and navigate the drone to cruise along the track to perform track inspection tasks; track images are taken by the onboard drone camera and processed to provide both navigation information for autonomous drone flight control and track component health evaluation.
    Type: Application
    Filed: March 7, 2023
    Publication date: September 14, 2023
    Applicant: University of South Carolina
    Inventors: Yu Qian, Yi Wang, Chen Chen
  • Patent number: 11577486
    Abstract: The present invention relates to a composite comprising (1) a bottom layer comprising expanded thermoplastic elastomer particles; and (2) a surface layer on the bottom layer, and the use of such composites in flooring surfaces sports, sports hall floorings, swimming pool hall floorings, running tracks, sports facilities, playgrounds, kindergartens, park walkway and pavements.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: February 14, 2023
    Assignee: BASF SE
    Inventors: Frank Prissok, Zhen Yu Qian, Jiandong Cai, Anna Kristin Herbst, Xue Dong Li, Kun Luo
  • Publication number: 20210396685
    Abstract: Described herein are a low-cost, non-destructive, and contact-free intelligent inspection system that is field-deployable on a geometry car, high-rail vehicle, or other types of track inspection platforms to identify broken railway/railroad spikes in real-time.
    Type: Application
    Filed: May 27, 2021
    Publication date: December 23, 2021
    Applicant: University of South Carolina
    Inventor: Yu Qian
  • Publication number: 20210370993
    Abstract: Systems, methods and devices for a computer vision-based pixel-level rail components detection system using an improved one-stage instance segmentation model and prior knowledge, aiming to inspect railway components in a rapid, accurate, and convenient fashion.
    Type: Application
    Filed: May 26, 2021
    Publication date: December 2, 2021
    Applicant: University of South Carolina
    Inventors: Yu Qian, Feng Guo
  • Publication number: 20210292713
    Abstract: The present disclosure provides, among other things, a method for efficiently producing natural killer cells from induced pluripotent cells. The method includes the steps of: (I) culturing pluripotent stem cells in a culture medium to produce CD56+/CD3? immune cells.
    Type: Application
    Filed: February 26, 2021
    Publication date: September 23, 2021
    Inventors: Yu Qian, Hui-Hsin Chang, Xi Shi, Jianxin Hu, Lan Cao
  • Publication number: 20210161291
    Abstract: In an aspect, a system for mobile modular furniture storage and deployment, wherein the system comprises a three-dimensional form having opposite and opposing sides, a plurality of modular furniture elements each configurable from a storage mode to a deployed mode. The three-dimensional form is configured to encapsulate a modular furniture element in a storage mode. The plurality of modular furniture elements are further configured to couple to at least one other of the plurality of furniture elements and two coupled modular furniture elements form at least a portion of a side of the three-dimensional form.
    Type: Application
    Filed: November 25, 2020
    Publication date: June 3, 2021
    Inventors: Kloe Ng, Yu Qian Ang
  • Patent number: 10939350
    Abstract: The present disclosure provides a method in a wireless device for initiating a handover from a source base station to a target base station. The method includes calculating a power offset indicative of a difference between a receiving power from the target base station and a receiving power from the source base station. A Time Division Duplex (TDD) configuration difference is obtained between a TDD configuration of the target base station and a TDD configuration of the source base station. A TDD offset is calculated based on the TDD configuration difference and an uplink-downlink traffic model of the wireless device. The handover is initiated based on a combination of the power offset and the TDD offset exceeding a threshold. The present disclosure also provides a wireless device, a method in a base station and a base station.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: March 2, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Rui Fan, Jinhua Liu, Yu Qian
  • Publication number: 20210046729
    Abstract: The present invention relates to a composite comprising (1) a bottom layer comprising expanded thermoplastic elastomer particles; and (2) a surface layer on the bottom layer, and the use of such composites in flooring surfaces sports, sports hall floorings, swimming pool hall floorings, running tracks, sports facilities, playgrounds, kindergartens, park walkway and pavements
    Type: Application
    Filed: May 9, 2018
    Publication date: February 18, 2021
    Applicant: BASF SE
    Inventors: Frank PRISSOK, Zhen Yu QIAN, Jiandong CAI, Anna Kristin HERBST, Xue Dong LI, Kun LUO
  • Patent number: 10738028
    Abstract: Disclosed are the anti-bacterial activity and the anti-tumor activity of a class of new spiro three-membered ring and spiro five-membered ring peptide deformylase inhibitor. The spiro three-membered ring and spiro five-membered ring peptide deformylase inhibitor of the present invention, as a class of new anti-bacterial agent, are effective against many antibiotic-resistant Gram-positive strains by inhibiting the activity of the peptide deformylase required in the synthesis of bacterial proteins, and do not affect the synthetic process of the main proteins of the human body, thus selectively killing bacteria.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: August 11, 2020
    Assignee: RUDONG RUIEN PHARMACEUTICAL TECHNOLOGY CO. LTD
    Inventors: Wenhao Hu, Fengping Lv, Yang Tang, Ziyan Li, Chen Chen, Jianhai Wei, Suzhen Dong, Yu Qian
  • Publication number: 20190320373
    Abstract: The present disclosure provides a method in a wireless device for initiating a handover from a source base station to a target base station. The method includes calculating a power offset indicative of a difference between a receiving power from the target base station and a receiving power from the source base station. A Time Division Duplex (TDD) configuration difference is obtained between a TDD configuration of the target base station and a TDD configuration of the source base station. A TDD offset is calculated based on the TDD configuration difference and an uplink-downlink traffic model of the wireless device. The handover is initiated based on a combination of the power offset and the TDD offset exceeding a threshold. The present disclosure also provides a wireless device, a method in a base station and a base station.
    Type: Application
    Filed: June 27, 2019
    Publication date: October 17, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Rui FAN, Jinhua LIU, Yu QIAN
  • Patent number: 10390280
    Abstract: The present disclosure provides a method in a wireless device for initiating a handover from a source base station to a target base station. The method includes calculating a power offset indicative of a difference between a receiving power from the target base station and a receiving power from the source base station. A Time Division Duplex (TDD) configuration difference is obtained between a TDD configuration of the target base station and a TDD configuration of the source base station. A TDD offset is calculated based on the TDD configuration difference and an uplink-downlink traffic model of the wireless device. The handover is initiated based on a combination of the power offset and the TDD offset exceeding a threshold. The present disclosure also provides a wireless device, a method in a base station and a base station.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: August 20, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Rui Fan, Jinhua Liu, Yu Qian
  • Publication number: 20190194165
    Abstract: Disclosed are the anti-bacterial activity and the anti-tumor activity of a class of new spiro three-membered ring and spiro five-membered ring peptide deformylase inhibitor. The spiro three-membered ring and spiro five-membered ring peptide deformylase inhibitor of the present invention, as a class of new anti-bacterial agent, are effective against many antibiotic-resistant Gram-positive strains by inhibiting the activity of the peptide deformylase required in the synthesis of bacterial proteins, and do not affect the synthetic process of the main proteins of the human body, thus selectively killing bacteria.
    Type: Application
    Filed: May 10, 2017
    Publication date: June 27, 2019
    Applicant: Rudong Ruien Pharmaceutical Technology Co. Ltd
    Inventors: Wenhao HU, Fengping LV, Yang TANG, Ziyan LI, Chen CHEN, Jianhai WEI, Suzhen DONG, Yu QIAN