Patents by Inventor ZhaoYi Xu

ZhaoYi 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: 20240431215
    Abstract: A method of fabricating a nitrogen-vacancy (NV) center quantum sensing device based on electrohydrodynamic (EHD) printing. A nanopipette with an aperture at one end is filled with nanodiamond suspension ink so the ink is present in a meniscus at The aperture, the nanodiamond suspension ink comprises nanodiamonds and solvent. The nanopipette is supported above a substrate having a back electrode. A DC is applied pulse between the nanopipette and the back electrode so as to generate an electrostatic attractive force resulting in the ejection of nano-diamond-laden droplets with sub-attoliter volume. The droplet lands on the substrate and is allowed to dry due to solvent evaporation. Using the method, the control of the number of printed nano-diamonds is at will, attaining single-particle level precision. This printing approach, therefore, enables printing NV center arrays with a controlled number directly on the substrate without any lithographic process.
    Type: Application
    Filed: August 19, 2022
    Publication date: December 26, 2024
    Applicant: Versitech Limited
    Inventors: Jitae Kim, Zhaoyi Xu, Zhiqin Chu, Lingzhi Wang
  • Publication number: 20240130637
    Abstract: System and method for sensing movement such as chest movement of each of a plurality of target test subjects by: transmitting, at each of N transmitting antennas (TXs) of a phased multiple-input multiple-output (phased-MIMO) radar, a common frequency modulated continuous wave (FMCW) signal in each of a plurality of time division multiplex (TDM) slots, each TDM slot having associated with it a respective weight selected in accordance with a transmit steering vector configured to cause a coherent summation of transmitted signal in a desired direction ?0 toward at least one target; receiving target-reflected energy associated with the transmitted FMCW signals at a virtual array formed by stacking signal from P TDM slots received via M receiving antennas (RXs) of the phased-MIMO radar; and processing an output of the virtual array to extract therefrom signal received from the desired direction ?0 to determine thereby target movement in the desired direction ?0.
    Type: Application
    Filed: October 18, 2023
    Publication date: April 25, 2024
    Applicant: Rutgers, The State University of New Jersey
    Inventors: Athina Petropulu, Yingying Chen, Zhaoyi Xu, Chung-Tse Michael Wu, Cong Shi, Tianfang Zhang, Shuping Li, Yichao Yuan
  • Publication number: 20230032493
    Abstract: Various embodiments comprise systems, methods, architectures, mechanisms and apparatus providing a dual-function radar communication (DFRC) system a multiple-input multiple-output (MIMO) radar is configured to have only a small number of its antennas active in each channel use. Probing waveforms are of an orthogonal frequency division multiplexing (OFDM) type. OFDM carriers are divided into two groups, one group that is used by the active antennas in a shared fashion, and another group where each subcarrier is assigned to an active antenna in an exclusive fashion (e.g., private subcarriers). Target estimation is carried out based on the received and transmitted symbols. The system communicates information via the transmitted OFDM data symbols and the pattern of active antennas in a generalized spatial modulation (GSM) fashion. A multi-antenna communication receiver can identify the indices of active antennas via sparse signal recovery methods.
    Type: Application
    Filed: July 7, 2022
    Publication date: February 2, 2023
    Applicant: Rutgers, The State University of New Jersey
    Inventors: Athina Petropulu, Zhaoyi Xu
  • Patent number: D900115
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: October 27, 2020
    Assignee: Shenzhen Zhongbo Dingsheng Technology Co., Ltd.
    Inventor: ZhaoYi Xu
  • Patent number: D964991
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: September 27, 2022
    Inventor: Zhaoyi Xu
  • Patent number: D964992
    Type: Grant
    Filed: March 10, 2022
    Date of Patent: September 27, 2022
    Inventor: Zhaoyi Xu
  • Patent number: D973651
    Type: Grant
    Filed: June 22, 2022
    Date of Patent: December 27, 2022
    Inventor: Zhaoyi Xu
  • Patent number: D975098
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: January 10, 2023
    Inventor: Zhaoyi Xu