Patents by Inventor Yingwen Liu

Yingwen Liu 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).

  • Patent number: 11092875
    Abstract: Reconfigurable nonlinear frequency conversion waveguide chip based on Mach-Zehnder interferometer coupled micro-ring, the method is based on the integration of waveguide components of phase-adjustable Mach-Zehnder interferometers (MZI) and micro-ring resonators. The chip is illustrated by FIG. 1. The MZI couples light and photons into and output of the micro-ring resonator and controls the micorings' quality factor thus optimize the nonlinear frequency conversion processes inside the ring by the phase-modulator inside the MZI. The micro-ring resonator enables the nonlinear optical generation of new frequency light beams and quantum light sources based on the second-order or third-order nonlinear optical process. Other optical waveguide components in region I and III of FIG. 1 are linear optical circuits for power splitting of pump beams and post-process of generated light beams or photons.
    Type: Grant
    Filed: June 14, 2020
    Date of Patent: August 17, 2021
    Assignee: National university of defense technology
    Inventors: Ping Xu, Yingwen Liu, Chao Wu, Junjie Wu
  • Publication number: 20200401012
    Abstract: Reconfigurable nonlinear frequency conversion waveguide chip based on Mach-Zehnder interferometer coupled micro-ring, the method is based on the integration of waveguide components of phase-adjustable Mach-Zehnder interferometers (MZI) and micro-ring resonators. The chip is illustrated by FIG. 1. The MZI couples light and photons into and output of the micro-ring resonator and controls the micorings' quality factor thus optimize the nonlinear frequency conversion processes inside the ring by the phase-modulator inside the MZI. The micro-ring resonator enables the nonlinear optical generation of new frequency light beams and quantum light sources based on the second-order or third-order nonlinear optical process. Other optical waveguide components in region I and III of FIG. 1 are linear optical circuits for power splitting of pump beams and post-process of generated light beams or photons.
    Type: Application
    Filed: June 14, 2020
    Publication date: December 24, 2020
    Applicant: National University of Defense Technology
    Inventors: Ping XU, Yingwen LIU, Chao WU, Junjie WU
  • Publication number: 20200175594
    Abstract: A method and system are disclosed for more efficiently constructing a volatility surface. The methodology results in measurable reduction in the quantity of storage memory space needed on a computer executing the novel methodology, reduces the measurable, on-demand computational load on the processor(s) of a computer executing the novel methodology, and permits as-of-day calculations of the volatility surface that were previously impossible to obtain in near real-time.
    Type: Application
    Filed: December 2, 2019
    Publication date: June 4, 2020
    Applicant: Chicago Mercantile Exchange Inc.
    Inventors: Jennifer Weng, Ziyi Wang, Xianqing Zou, Yingwen Liu, Shuo Liu, Chenda Huang
  • Patent number: 10529022
    Abstract: A method and system are disclosed for more efficiently constructing a volatility surface. The methodology results in measurable reduction in the quantity of storage memory space needed on a computer executing the novel methodology, reduces the measurable, on-demand computational load on the processor(s) of a computer executing the novel methodology, and also permits as-of-day calculations of the volatility surface that were previously impossible to obtain in near real-time.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: January 7, 2020
    Assignee: Chicago Mercantile Exchange Inc.
    Inventors: Jennifer Weng, Ziyi Wang, Xianqing Zou, Yingwen Liu, Shuo Liu, Chenda Huang
  • Publication number: 20170243261
    Abstract: Systems and methods are provided for efficiently determining prices of futures, spreads and swaps by considering product interdependencies. The disclosed systems and methods use interpolation, extrapolation and backward propagation to produce accurate results.
    Type: Application
    Filed: February 24, 2016
    Publication date: August 24, 2017
    Inventors: Jennifer Weng, Panagiotis Xythalis, Yingwen Liu, Lingrui Xiang, Shuo Liu, Sixiang Li, Chenda Huang, Ziyi Wang, Nataliya Frost, Xianqing Zou
  • Publication number: 20170221145
    Abstract: A method and system are disclosed for more efficiently constructing a volatility surface. The methodology results in measurable reduction in the quantity of storage memory space needed on a computer executing the novel methodology, reduces the measurable, on-demand computational load on the processor(s) of a computer executing the novel methodology, and also permits as-of-day calculations of the volatility surface that were previously impossible to obtain in near real-time.
    Type: Application
    Filed: January 12, 2017
    Publication date: August 3, 2017
    Inventors: Jennifer Weng, Ziyi Wang, Xianqing Zou, Yingwen Liu, Shuo Liu, Chenda Huang