Patents by Inventor Chengliu Li

Chengliu 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).

  • ADVANCED SECURE PAYMENT DEVICE
    Publication number: 20210110391
    Abstract: A wallet card or other device includes three buttons, a PCB antenna for connection to all cellular bands including low band, mid band and high band, dual pressure sensors operable to determine velocity and/or as an independent trigger, a cellular chip whose encryption/decryption key between a payment network and the cellular chip is dynamically changeable for security, and a dynamic magnetic communications device operable to communicate data using a magnetic data waveform with amplitude adjusted by the device.
    Type: Application
    Filed: October 6, 2020
    Publication date: April 15, 2021
    Inventors: Jeffrey D. Mullen, Ryan Patrick Dew, Andrew Veter, Keith Huthmacher, Kevin D. Bruner, Allen D. Bowers, Chengliu Li
  • Magnetic cards and devices for motorized readers
    Patent number: 10032049
    Abstract: One or more detection activities of a card may allow calculation of rolling speed in motorized readers. Accordingly, the detection activity may result in a data transmission speed with greater accuracy after a determination of position, velocity and/or acceleration of the faster-moving device in relation to the card. Such detection activities may increase a probability of a successful communication sequence.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: July 24, 2018
    Assignee: DYNAMICS INC.
    Inventors: Chengliu Li, James H. Workley, Kevin David Bruner, Allen D. Bowers
  • MAGNETIC CARDS AND DEVICES FOR MOTORIZED READERS
    Publication number: 20170243031
    Abstract: One or more detection activities of a card may allow calculation of rolling speed in motorized readers. Accordingly, the detection activity may result in a data transmission speed with greater accuracy after a determination of position, velocity and/or acceleration of the faster-moving device in relation to the card. Such detection activities may increase a probability of a successful communication sequence.
    Type: Application
    Filed: February 23, 2017
    Publication date: August 24, 2017
    Inventors: Chengliu Li, James H. Workley, Kevin David Bruner, Allen D. Bowers