Patents by Inventor Qianru LI

Qianru 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).

  • Publication number: 20240029554
    Abstract: The present disclosure provides a method and an apparatus for detecting a state of a traffic light, a storage medium a device and a vehicle and belongs to the field of traffic technologies. The method includes: obtaining state detection results for the traffic light based on traffic light images; according to a plurality of state detection results within a first time window and a traffic light state corresponding to each preset road junction type, determining a target road junction type of a target road junction; in response to that a target detection result is present in the state detection results obtained after determining the target road junction type, determining the target detection result as a false detection result, where the target detection result includes a state other than the traffic light state corresponding to the target road junction type.
    Type: Application
    Filed: October 6, 2023
    Publication date: January 25, 2024
    Applicant: Momenta (Suzhou) Technology Co., Ltd.
    Inventors: Zhaorui Zhang, Qianru Li, Lei Zhang, Luning Wang, Jingyuan Xue, Jiansen Huang
  • Patent number: 11843494
    Abstract: An orthogonal frequency-division multiple access (OFDMA)-based backscatter system is provided, including an analog portion and a digital logic portion. The analog portion includes an antenna, radio frequency switches, an envelope detection circuit, and a transmission line. The digital logic portion includes an inverse discrete Fourier transform (IDFT)-based digital frequency synthesis module. Two outputs of the digital logic portion control all of the radio frequency switches, and the envelope detection circuit provides an input of the digital logic portion. OFDMA backscatter tags designed can operate on any given subchannel without hardware being re-powered and modified, and can operate at a specified symbol rate. The system provides a networking physical layer foundation for a large amount of OFDMA backscatter tags, and satisfies the growing Internet of Things capacity requirements.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: December 12, 2023
    Assignee: SHANGHAI JIAO TONG UNIVERSITY
    Inventors: Fengyuan Zhu, Yuda Feng, Qianru Li, Xiaohua Tian, Xinbing Wang
  • Patent number: 11770406
    Abstract: Systems and methods for mitigating cyberattacks are described herein. A computing system can detect illegitimate network traffic associated with a cyberattack in network traffic. The computing system can determine an amplification factor of the cyberattack based in part on a probability distribution of the illegitimate network traffic. The computing system can determine a filter to demotivate a generation of the illegitimate network traffic. The determined filter can reduce the amplification factor of the cyberattack. The computing system can implement the determined filter to block the illegitimate network traffic.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: September 26, 2023
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Yuanjie Li, Kyu-Han Kim, Qianru Li
  • Publication number: 20230103804
    Abstract: An orthogonal frequency-division multiple access (OFDMA)-based backscatter system is provided, including an analog portion and a digital logic portion. The analog portion includes an antenna, radio frequency switches, an envelope detection circuit, and a transmission line. The digital logic portion includes an inverse discrete Fourier transform (IDFT)-based digital frequency synthesis module. Two outputs of the digital logic portion control all of the radio frequency switches, and the envelope detection circuit provides an input of the digital logic portion. OFDMA backscatter tags designed can operate on any given subchannel without hardware being re-powered and modified, and can operate at a specified symbol rate. The system provides a networking physical layer foundation for a large amount of OFDMA backscatter tags, and satisfies the growing Internet of Things capacity requirements.
    Type: Application
    Filed: June 23, 2021
    Publication date: April 6, 2023
    Applicant: SHANGHAI JIAO TONG UNIVERSITY
    Inventors: Fengyuan ZHU, Yuda FENG, Qianru LI, Xiaohua TIAN, Xinbing WANG
  • Publication number: 20220272120
    Abstract: Systems and methods for mitigating cyberattacks are described herein. A computing system can detect illegitimate network traffic associated with a cyberattack in network traffic. The computing system can determine an amplification factor of the cyberattack based in part on a probability distribution of the illegitimate network traffic. The computing system can determine a filter to demotivate a generation of the illegitimate network traffic. The determined filter can reduce the amplification factor of the cyberattack. The computing system can implement the determined filter to block the illegitimate network traffic.
    Type: Application
    Filed: February 23, 2021
    Publication date: August 25, 2022
    Inventors: YUANJIE LI, KYU-HAN KIM, QIANRU LI
  • Publication number: 20220213468
    Abstract: A low-input RNase footprinting approach is described for the rapid quantification of ribosome-protected fragments with 1,000-100,000 cells. The assay uses a simplified procedure for capturing ribosome-RNA complexes based on optimized RNase digestion. It simultaneously maps cytosolic and mitochondrial translation with single-nucleotide resolution.
    Type: Application
    Filed: December 6, 2021
    Publication date: July 7, 2022
    Applicant: Northwestern University
    Inventors: Qianru LI, Haiwang YANG, Zhe JI